There are times when we can be caught off guard and our previous acts come to light. We can't undo them but maybe we can think about possible responses so that can deflect future questions without have to divulge the real reason.

At times people draw their own conclusions about scars and ask if it is from such and such... when it is plausible I will agree. This may not be the truth but the truth is none of their business. Other times I just get vague about it and respond with a 'I don't remember'.

It really is part of your past and remains so. Something to let go of and send the shame and embarrassment of on to a cloud to drift away so that peace can return.