I've won my school trophies for pretty much all academic competitions.
On occasion when people say something beyond ridiculous.
In debate club, and occasionally when I feel strongly towards a certain topic. If it's irrelevant, most likely not.
I often have to correct people's points of view; in fact I did that today. The person I corrected said "Gosh, I feel like a sheep".
Only when people begin a heated, controversial conversation XD