I've definitely seen it all, can't surprise m...

@RickiTarr what's cool is that this paranoid myth is based in fact -- bizarrely, some cancers in dogs are contagious... to other dogs, but not to humans

https://www.cam.ac.uk/research/news/male-dogs-four-times-more-likely-to-develop-contagious-cancer-on-nose-or-mouth-than-females

Male dogs four times more likely to develop contagious cancer on nose or mouth than females

Sniffing or licking other dogs’ genitalia – the common site of Canine Transmissible Venereal Tumour – can spread this unusual cancer to the nose and mouth.

University of Cambridge
@alexch @RickiTarr
And never kiss a Tasmanian devil!