So is laughing contagious?

[kk.]

I read somewhere a while ago that it is. Similar to yawning when youre talking about it or see someone doing it you yawn. I think it only works if you see people doing it but i honestly think it is. Discuss! about anything that is.... not like illnesses or something.

btw, this video is quite amusing http://uk.youtube.com/watch?v=5P6UU6m3cqk

[Stephen08]

That baby is famous you know? He was on southpark

[kk.]

really? well its still funny for about 30 seconds

[Misawa]

It's like one of the most popular videos of YouTube. Yet it still fails to amuse me.

[Zabuza]

Yawning is completely true. My friend and I sat a whole class yawning back and forth, it was hilarious.
I'd say laughing is too. If i laugh, somebody else laughs then everyones laughing

[buttons]

no
if i'm sad & people are laughin it makes me feel even bad thinking how can they be laughin & joking when i am upset
LOL, that's selfish but yeee. if i'm in a kk mood then yhyh

[Wootzeh]

http://break.com/index/try-not-to-laugh.html

I lost at number 2

[Zabuza]

http://break.com/index/try-not-to-laugh.html

I lost at number 2

I felt like laughing before getting onto the page
OOPS LOL. I lost at the baby (1). I can't resist a laughing baby.
The black guys funny <:

[buttons]

i laughed @ the black man, NEEK!

[Zabuza]

HAHAHAAHAH
I CANT STOP LAUGHING
The fat lady
LOL