Dirty Panty Sniffers

I have a question.. People who meet on craig's list, panty sniffer forums, or through other misc means. What if your meeting another guy who came in his wife's clean panties, so when you think your smelling,, eating crusty vag, what if your eating his crusty cum, slathering all over your face, cock, mouth…. added bonus this guy or partner has std thats sexy, smart guys smelling misc whatever. gross ewww Makes me wonder how many guys do that?