Random Scrapes and Cuts

Ever been just walking along enjoying your day? and you look down and the heck? How'd you get that scratch? you dont remember doing anything to get a scratch, and you never felt it happen. But as soon as you notice its there, it seems like its all you can feel. And you spend the rest of your day trying to figure out what you did to get the thing but you never do figure it out and it sucks!