When people say "I'm not racist but. . ." and then they say something racist.
Retail establishments displaying stuff on thin metal sticks hanging at toddler eye level.
Turning on a bedside light without warning, thus ensuring a victim's pupils are fully dialated. . . Gah. . .
Referring to any agency of national government as 'the feds.'
Finding a TV remote in the car or anywhere else where it couldn't possibly be used.
TV shows or ads with doorbells, ringing phones, or alarm clocks.
Giving or getting lethal tools or weapons as gifts, especially for weddings, anniversaries.
People that don't believe a word I say. Like, your under arrest.
Lights that turn red just as your far enough away you'd have to stop, but your the only car for a long ways.