Well you haven't ever done this for real.

You shake your head suddenly taken by apprehension. "You mean like... other than the official rules, this is my first stop so I haven't done this before." He chuckles and smiles more genuinely "Well the official rules are that we can impose any cost for failure we like. The test has to be fair but those that don't pass have to pay a forfeit. Some places do it on a case by case basis some on certain criteria more than a few have a time period where you can't rechallenge."

You nod, you did actually know that but it didn't occur to you that the penalty they imposed could vary. He helpfully continues "Every gym gas a waiver that states that the trainer agrees to the penalty imposed, we do have to tell you what it will be beforehand if you ask..."

You wait for him as he holds out a pad with the waiver then realize "Oh right. What is the penalty." He chuckles "Well officially it is case by case but for girls that are..." He looks you up and down "well for you, it will be a week in the pit for every trainer you fail to beat. You will face 4 plus Brock, if you beat the 4 and lose to Brock the penalty is that he will personally fuck you and help you train for as long as you both agree to the arrangement." You gulp "and... what is in the pit?" He smiles evilly "It is where the trainers under brock go for stress relief, the girls kept down there are mostly girls that one of Brock's boys enslaved and donated but we do love when a trainer comes in unprepared and we get some fresh meat for a few weeks."