Cancer Sniffing Dogs

[burtandnancy]

Did you see on the news that scientists have figured out that dogs can sniff out various cancers with very positive results? My friends mutt always has his nose in someone's crotch, do you think he's checking for cancer?

[Rexone]

Well based on that most dogs must have ass cancer.

[burtandnancy]

Is that why their always checking themselves?