Sabrina Carpenter Fans Claim Woman Peed in Pit ... Too Much 'Espresso' Pre-Show???
Sabrina Carpenter's fans must've been saying "Please, Please, Please" be warm water ... 'cause several posted on social media saying they got straight-up peed on by a fellow fan -- who unleashed her stream in the middle of the pit!
Here's the deal ... Sabrina took the stage at Chase Center in San Francisco Saturday night -- serenading the packed crowd at the arena.
While her show seemed to go off without a hitch, some fans in the pit said their night wasn't so clean ... literally, 'cause they swear a woman squatted down and took a piss right next to them.