been there done that lmao..!!!
Damn hard to stop isn't it..???
ROTFLMAO
and yousit there wondering how the heck did i start laughing in the first place with everything else going on...
Some say it is the endorphins kicking in .. the scene gets to be to much and your body takes over confused at which way it is supposed to act .. turning off all other things until things slows down or you get a grip on what is happening again...
but i don't know
just my opinion
hugs
snow