As a left-hander, I'm discriminated against all the time. Not for serious things: I am not denied housing, a job, a seat on the bus. But I experience anti-lefty bias in the form of school desks that are unusable, carrot peelers that are useless, power tools (such as skill saws) that are dangerous or even life-threatening, pens that smear and make my writing illegible, computer mice that cause hand cramps. Teachers tried to force me to write with my right hand when I was a child; I used to stutter, and perhaps that was why.