It's rude to flash people.
Isaac is at a public park with lots of kids where he has been weight-lifting.
Isaac wants to show off his muscled body.
Isaac walks to a private part of the park and shows off his body only to his girlfriend.
Isaac takes off all his clothes and exposes himself to the kids in the park.
The kids at the park are unharmed and parents are happy.
The kids' parents start screaming at Isaac, and he is arrested.