Maybe I've been fortunate but I've not had too many problems with civvies. The only time I noticed that they were less than salubrious is when we've had sex after work and they hadn't showered or when I was young and stupid and used to have drunken one night stands, there's nothing like waking up next to someone to the smell of kebab sweat.
That said in a parlour I remember one escort had the previous punter's spunk on her breast.