Do you know anything about Krav Maga? A friend was telling me about it. I was thinking of looking for some classes.  
I think I've heard of it.  Is that the new pottery fad?
Ha, no, it is a military self-defense thing, it was developed in Israel. 
ooh, developed in Israel.  It must be effective.  Do you think it's better than Karate?
It actually involves some karate, but also boxing, wrestling, aikido, judo, and just general fight training.