My favorite jeans have a mysterious brown stain on the front of one of the thighs suddenly. (Errant paw print? Coffee spill? Who knows!) They have already been washed and dried before I noticed it, so unfortunately now it is baked in. I have had stains fade over time in jeans, so I could just do nothing, but I'm tempted to hit them with the bleach pen and then wash them by themselves, hopefully resulting in a cool distressed sort of look? Maybe the bleach will splatter a bit to elsewhere in the jeans? Or will they just look like they have a white stain, then?