Lol, the principle does have a non-assholeish side as well, who would have known. Also, everyone is still a kid on the inside, who wouldn't want to be tossed in the air xD
I'm just enjoying thinking about random passerby watching as a large group of teenagers fling some old man into the air. It probably looks pretty weird to uninformed outsiders, kind of like that time the tourist thought Saotome and Satoru had a domestic violence situation going on.