actually, Petrus Christus' "Portrait of a young lady" CAN hypnotize an innocent museum-goer. really. I think it's the girl's slanting eye. beware - before you know it you're stuck in that small room in berlin gemaldegalerie, for hours, staring at that tiny picture. waiting for her to blink.
People pass you by, sun sets, your family is worried sick and you're still there, looking at a small, white face of a slightly bored, underaged aristocrat that is long dead and gone and turned to dust. But she is still there all right. Time goes crazy. So you wait on and hours become seconds. finally she blinks and you are free to go.
that is the truly only best way to lose time.