Get your dog to sniff your butt

[ULYCYC]

http://yourlife.usatoday.com/pets/pawprintpost/post/2011/02/dog-sniff-out-colon-cancer/141221/1

[DCEPTCN]

I've heard that a dog's sense of smell is about 245 times that of a human's. I always wonder how my dog can remain asleep when I fart near it.