if pee is the same color as the trolls blood color then a party game called “pee or blood” could be done where several tiny cups are filled with either piss or blood and u gotta drink one and hope u dont get a mouthful of piss
… does no one have a nose?
you seen the comic
terezi is the only one who could tell before tasting so they always pair her up with equius so his sweaty smell can overpower the piss