Is This Some Type of Sticker?I found several of these arrow shaped sticker-like things in my hair. I also found them on my dog, which is a wire-haired mini daschund. They were very difficult to get off. A few days before, I had a sudden, multiple variety, bug hatching at my house and I'm worried about (eggs, disease) if they are bugs. If not a bug, what are they and how did we pick these hitchhikers up?