Well you're very very exceptional then. Few other people have the ability to read minds and tell what is in a person's muscle memory by looking at them.
Until Bruce Lee has taken down half a dozen minions he looks hardly more impressive than any of the guys who have shirts on.
Technically, the characters must know who the redshirts are. If the bad guys didn't know the redshirts were unimportant and meant for him to kill to stress a point, he'd just as likely kill Kirk instead!I personally like to think of minions as the Redshirts of D&D. You (the audience/player) know that they are minions. The characters only know what is described.