me too. i usually wear a lot of bracelets, or maybe just a cuff i wear all the time, and i "forget" to take it off when i go swimming. Well my scars are fading a bit now so i don't use it as much. for the legs, maybe wear shorts in the water and tell ppl ur self concious about your thighs. or just go with the pet story, it could be somewhat believable. Say you have a cat with sharp nails, and you scar easily. Idk :/