Its never happened to me but once my husband passed out. We were smoking out of our steamroller, standing up in the kitchen, and all of a sudden he gets this huge, goofy grin on his face. Next thing I know hes on the floor still grinning! He passed out with a smile on his face! LOL!
He came to a few seconds later and didn't remember a thing, but I got a memory to last a lifetime! No lasting effects. Just embarrassment every time I bring it up! :giggity:

P.S. It happened one time in 30 years of smoking.