He drools on your carpet...

As was intended, the bit gag makes it nearly impossible for Stan to hold back his drool. You give him a playful look.
"Don´t drool on my carpet or I´ll punish you."

Stan looks surprised and immediately starts trying to suck in his spit. But with the wedge disabling him from swallowing it, it just ads up until he can´t hold it back anymore.

A long thick strand of drool dripps from his mouth and down o the ground. Stan stops resisting and the rest of the spit follows. You walk over to him.
"Hm, seems I must punish you..."