Heh... I end up with unexplained bruises and scratches all the time. I think my cats actually sneak up on me while I'm in a deep sleep and claw the hell out of my limbs and back.

Though - and in line with the previous comment thread ;-D - the fang marks are all Frazer. That boy has the largest canines I've ever seen without the person being one of those people who has cosmetic dental work done.