At first things go well. The client "Brosef" behaves himself. He definitely doesn't seem like a conspiring criminal, just some pervy dude that wants to have fun with a woman's form. Which could be good, it will help you expand your market from just transgender males.
Jesse brings him into the cave blindfolded. Normally clients are anxious, but this guy is acting lackadaisy.
Brosef: "So are you the one that turns guys into chicks, or are you like, his secretary?"
He agrees to a $5000 swap, and puts down another $5000 for an IOU for a swap back. Unfortunately, just before you swap him he breaks the rules and peeks the blindfold. He sees your male face!
Brosef: "Dooooog! Are you the real Gender Vendor?? Sorry, couldn't resist checking out what you look like! I thought you'd be like a wizard or something."

Letting him get away with this is a bad precedent. You can't keep bailing on deals forever though...

>zero tolerance
>fine him
>let him off