I was going to make a "thats where I found your mum" joke, but I've actually got a little story about the last time I went into a thrift store.
Over here, they are run by the Salvation Army/St. Vincent de Paul,
Anyway, as a uni student, I'd always have a little squizz through the racks on a Monday, as thats when the clothing bins got emptied.
In there minding my own business when I heard a rustle behind the clothes, I thought, well what the fuck was that!, I then endeavoured to pull back the clothes from the hanging rack, and in behind was this little Cambodian girl, taking a fucking shit on the floor!!
The dirty fucking bitch! I couldn't believe me blimmen eyes! right there in the middle of the rack, with her pants down her ankle, popping a squat and shitting! the dirty bloody mongroel! Got the women who manned the place, the mother came over and took her out and they closed the shop while they cleaned up the mess
Ever since that time, I'm very reluctant to go into shops such as this, apart from finding gems of clothing, who knows what else you may find!