A biologist named Rupert Sheldrake has done some interesting work on the 'sense of being stared at' - the human ability to know when someone is looking at us. He claims that his experiments show, in a way that means it's not just chance, that we do actually know, and look for the source of the stare. His stuff is interesting to anyone who's interested in 'weird science' (and his proposed explanation is fairly weird), but I'm more interested in its practical implications. I know I already look hard at any driver I think is planning on pulling out in front of me. But if we made a conscious habit of this (without ignoring whatever else we need to be looking at, of course), maybe we can (in some cases, not all) *force* the inattentive driver to pay attention.