http://www.wimp.com/contagiousprank/

If it's SIAL, too bad.

 

The fun we used to have with this at school, not seen it in a few years tho!

 

Only funny if you follow it up with a yawn r@pe!

 

Fell asleep watching it

 

seen it before

YAWN!

 

I read something about yawning a while back,it said its suppose to have something to do with communication/attracting the opposite sex....

 

You yawn to obtain more oxygen. If you yawn infront of someone their body assumes its not getting enough oxygen and follows suit.

I wonder now many of those vids are real. The people that respond seem to over do it.