..try out a classes knowledge of First Aid!! Here in China it is pretty much non-existent. Give (an older class) a question:

You are in a restaurant and your friend (I usually pick out a student in the class here, to give it some personality) starts to choke on a piece of meat. What do you do?

Well, I get all sorts of answers to this one!! Most foreigners would know the (and I can't spell this) Hymlic (sp?) manouver. Not so here, go on, give it a go, you will be shocked and amazed!

(NB: I always tell my students: If I am hurt, *leave me alone!!* go and get one of the other teachers! :-)