Oh God, I have had a similar experience with #C. I know very little C, it was four in the morning and I was trying to get something finished, but it wouldn't work for some reason.
I joined #C to ask for some help, but people were trying to get me to discover the solution on my own, which is well and fine if you want to learn, but at that point I just wanted the trivial fix (it was something about an incorrect type, it was a 1-line fix and anyone with C experience could see it).
I asked them if they could just tell me how to fix it, because it was late and it wasn't really a good time for me to learn C, but they said something about them not being my personal tutors or something, and then just refused to help and treated me like an idiot for not knowing C.
In the end I just left the channel with very high blood pressure and asked a friend on IM who told me the correct line, and that was it.
#C: not even once.