favorite fails

http://www.youtube.com/watch?v=-5W58LoiSEQ&feature=related

http://www.youtube.com/watch?v=8DxKG2EW1Hc&NR=1

http://www.youtube.com/watch?v=zW-MznOOAas&NR=1

http://www.youtube.com/watch?v=t6eqpmTLOtI&feature=related

http://www.youtube.com/watch?v=u28V-_CLc8c

(careful, that last one has language...)