I put up a link to superuseless superpower, which is a pretty hilarious blog. One of my favorite videos by David Firth (of Salad Fingers fame) is about Alan, an alternative superhero. Alan has the power to telepathically know when someone will be shot, except only 30 seconds before it happens. He has a machine that can get him their nearly instantaneously – but not quite fast enough. (Warning: Like all of Firth’s videos, it is highly disturbing.)
Priya suggests the following uses for this superpower: as a reporter, as a medical student looking for bodies in the Renaissance, or hunting for organ donors.