Today is the day I actually saw somebody with a prosthetic arm and a hook for a hand.
I think this is up there with that day I was walking home to my apartment and I saw a man walking his poodles. And one of the poodles ran up to me and started baring its fangs and barking at me.
And then that time I was walking to class in the morning and I saw somebody start their morning jog all of a sudden. (They were walking casually and then all of a sudden they just began to run. It was odd. To me, at least.)