I had a real bad injury last year and its healing up – because i think thats the closest truth you can tell them. Smile a bit when you say it. You’re healing and you’re growing – you’re not in that place anymore and it is okay to have been there someday. Think of it from an outsider’s point of view – if you saw someone with those marks, you would simply be curious at best and maybe help if you feel thats possible but really, dont you have enough going on to think about someone’s leg for that long?