Especially when it comes to image recognition.
My brother was driving around the other day and says he saw someone with the Imperial logo from Star Wars on the back window as a decal.
Kinda like this:
He then pointed out another one to me as we were driving around. I saw this one, and it was this:
Amazing what a combination of benign ignorance coupled with fixation on sci-fi video games will do to the ability to recognize an object. I bet the first one was an arfcom sticker, too. I see lots of 'em driving around here in AZ. Not too many Imperial Palpatine sympathizers, though.