It stays on because comics.
So much for being practical, I guess.How does Superman fly? How does he shoot laser beams from his eyes? How does Wonder Woman’s lasso work? How does Batman never get any sleep and still function? How does Booster Gold travel back in time? How does the Joker manage to speak clearly after his face was literally ripped off?
actually the cap would just hold on because of friction. it has so much area of connection. and if say you add a friction improving surface on the inside it holds on even better.
also if you ask this go bother almost every comic book artist ever how women are supposed to fight in high heels or capes
So, friction can keep it from being yanked off by anybody?
Who’s going to yank it off? I have the scripts for our first few issues in front of me. I can’t find any scenes where someone’s yanked on it. We didn’t write any.