This happened in School.

It was Chemistry class and the teacher was explaining the manufacture of Sulfuric acid . It involves various stages with long explanations for each.
At almost the end of the class,the teacher asked if there were some doubts.
One effeminate friend of mine asked a doubt which pretty much impressed the teacher that he started showering praises on this guy.
And finally,instead of saying you're Superhuman  the teacher(poor English skills) said "you're not a man only! " .The class bursts out ROFL.
The next class was English and I was asked to read out the lesson aloud :/ .After some time,the English teacher asked for a girl to start reading out.Our friend had a serious doubt and at this juncture said aloud " Excuse Me Ma'am" and raised his hand.
Quite naturally all of us laughed again till we had stomach cramps.