Some events could have adult and child participation. Here are some I thought might be fun.
Contestants are parent and child teams.
The event begins with the parent throwing open the apartment window and without looking for the kid, or caring what distance away the kid happens to be, yelling out the kid's given name, like Ignatius, at a decibel level loud enough to crack an engine block. This does two things. It ruins the kid's macho image with the gang, cause now they all know that their friend Rocky is not really Rocky but, yuk, Ignatius. It also keeps him out of the military, because he now has a punctured eardrum from that piercing parental scream. God forbid you didn't hear that voice.