What useless talent/quirk do you possess?

My little cousin's birthmark is a gray eyelash that curls up very tight, but when he pulls it, it's about a foot long. He cuts it, but it grows back in a matter of days. No one ever notices it until he says, "hey, look at this".


So your "talent" is that you are related to someone with a "talent?" And was this also before your gastrointestinal problems?