Ramble alert!!
[QUOTE=TenTigers;880834]hmmm, not sure about that, Bakxierboxer.[/quote]
Hmmmm… wasn’t “Not Sure” the name of the (anti)hero in “Idiocracy”?
When I was in Malaysia, the tour guide referrd to the bus driver as Sifu.
Aside from the small fact that you were in Malaysia…
“Context is everything.”
(yeah, I did ask if he did Gung-Fu:-)
I note that you’re not telling us what his reaction was.
I know I’m having a knee-jerk reaction to this question…

Again, “Context is everything.”

A “knee-jerk reaction” might be a great response to seeing an opening during a clinch in the octagon, but it would be a totally inappropriate response to a pair of soft/warm/suckulent/female lips on your tool.
:rolleyes:
in all actuality, the answer you don’t want to hear, is still (in most cases) the best: When your Sifu says so.
“That depends.”
(Izzattanuddah “context”?)
(maaaaaaybeeee it’s two “contexts”?)
(could there be “even more” “contexts”?)
Contextually/IME, I’ve had several men I called “SiFu” in several different TCMA.
My first SiFu was a “nominal” SiFu in a “nominal” "TC"MA… and that man told me to call him by that term. I actually meant it when I said it.
That man introduced me to another SiFu who didn’t seem to care one way or the other what I called him, but he was clearly more proficient in TCMA.
I called him SiFu.
I really meant it when I said it.
I moved.
I opened a school.
People called me “SiFu”. 
Why?
When my first class started, one well-intentioned student asked me what he should call me… I didn’t have any better answer, so… I said what I thought I should, and, at the time, I meant it.
In 1966, I was at an unlikely event to find/“bump into” a SiFu… a NYC karate tournament.
Seeing the dual, dual-crossed knives on my gi-top sleeves, one fellow took exception to the idea that I taught a TCMA. saying:
“There’s a real SiFu here!”… and more or less “challenging” me to come meet this paragon.
I went with him and I was surprised… the guy actually was Chinese.
One thing led to another, and I shortly began calling him SiFu… and meant it.
I took a trip back to SoCal, and started trading sets with the first man I called SiFu.
I still called him that.
He introduced me to an older Chinese man who very matter-of-factly asked that I call him what amounted to “Mr.”
I asked him to teach me a set.
He put me with a senior student and watched, deadpanned, from the sidelines.
I came to notice that was his only “expression”.
One day, he “did something” inexplicable.
I stood there and gawked, speachless.
He turned to look at me… deadpanned.
I returned to the East Coast.
I thought about it.
I dreamed strange dreams.
A couple of years passed.
I returned to SoCal.
I went to see him.
I unthinkingly addressed him as SiFu, and really meant it.
His face split open in a grin I can only liken to the Cheshire Cat in “Alice in Wonderland”.
He still does “inexplicable stuff”, and, seemingly, there are no other students “involved”… even when they are “there”.
He still “greets me” with that grin when I see him.
(which happens to be “a good trick” in itself, since he can seemingly become “invisible” to most folks)
The same first SiFu also introduced me to yet another TCMA teacher that he called by name.
I learned a lot from him, and I also addressed him by his name.
Time passed.
“Stuff happened.”
My 3rd SiFu was injured in several auto accidents and couldn’t get about, let alone teach me.
I asked him if I could take lessons from another SiFu in a “similar” style.
He said “OK”.
I went to see the man, and he told me it would be “very expensive”.
I replied that was OK, because I learned fast.
He asked who I’d trained with.
I told him.
He went behind his desk, took out a pair of ball-bearings and refused to talk any more.
I left, “disappointed” at the least.
The next thing that happened was that I got an angry call from my SiFu demanding to know why I’d gone there and “made trouble”, and that the other SiFu had referred my visit to one of the Associations for “redress”, apparently thinking I was there to “do him ill”.
I explained what had happened in minute detail.
My SiFu reported back to the Association, which in turn told the other SiFu to p1ss off.
More time passed.
I still wasn’t learning anything.
With some trepidation, I asked my SiFu if I could train under his teacher.
I got the “OK”, and started taking lessons from him.
I called him SiGung and meant it.
Somehow I got “lumped in” with his disciples, who included my then-SiFu…
I had a question.
I asked the disciples about it, and they said “go ask your SiFu”.
I asked my then-SiFu about it.
He told me to “go ask your SiFu”…
I went with it.
With a good deal of doubt, I addressed him: “SiFu… blah, blah, blah…”
He looked at me and gave me an answer.
That was a rather long time ago… probably longer than most of the board members have been alive.
I still call him SiFu and have never even considered looking for another.
I still “look at” other Masters, but it’s largely “curiosity” to see if they “measure up” to the man I now call my SiFu…
I have absolutely no question as to whether or not I really mean it.
When I think about “my life”, there are many people in it…
Some of them are men I called “SiFu” and I will continue to call them that.
I’m not able to “demote” them in my thinking, after all, they did “teach me”.
OTOH, when I think about my TCMA, there is only one man at the center of it, and he has been my only measure for what I’ve done in it… for a rather long time, now.