you may have seen these before but it's awful when you just can't stop laughing, happened to me in school assembly once
http://www.youtube.com/watch?v=V7r6EozGXAo
http://www.youtube.com/watch?v=_0eINGyJHz8&NR=1
http://www.youtube.com/watch?v...WI&NR=1&feature=fvwp
http://www.youtube.com/watch?v=V7r6EozGXAo
http://www.youtube.com/watch?v=_0eINGyJHz8&NR=1
http://www.youtube.com/watch?v...WI&NR=1&feature=fvwp