It's not okay to spy on others.
Jack is taking a shower in the gym locker room after a hard workout.
Jack wants to compare his body to another man's body.
Jack strike up a conversation with another bodybuilder and asks him if they could compare each other's physiques.
Jack turns on his cell phone camera and records other men in the shower without them knowing.
Jack gets some good advice from the bodybuilder on how to improve his workout routine.
Jack is arrested for taking illegal videos of nude people without their consent.