Laughing Babies

None of these are my babies but they're good for a laugh. Be careful, they're contagious!

http://www.youtube.com/watch?v=I_mBLWpdwnI&feature=related
http://www.youtube.com/watch?v=cXXm696UbKY&feature=related
http://www.youtube.com/watch?v=jG5rQ3D_Zrw&feature=related
http://www.youtube.com/watch?v=tCDqqfUfJPo&feature=related
http://www.youtube.com/watch?v=5P6UU6m3cqk&feature=related
.