yeah I don't know I think people might spot the difference. But maybe most of these robbers have a method that says if you see anything like a security guard don't figure out if it is one just go rob somewhere that definitely doesn't have it because there's always somewhere else to rob - but maybe one of the groups of robbers is better than everyone else and they have a real robber mastermind in charge who determines the security guard is inflatable. Then it's on.

on edit: added in missing two words that clarified meaning.