I have found (yes, I looked in his wallet) a fake ID my 16 year old son has. It looks like a completely authentic European driving 'permit' (not licence). It has his picture, a false surname and false address, and says he's 18. I guess he's got it so that he can buy alcohol. I've googled fake ID's and it seems that you can buy them fairly easily... So, what to do? a) challenge him, which will turn into a 'why have you been through my things?' situation; b) take it away should I ever find his wallet lying around again, which is not likely, which will turn into a 'why have you stolen something from me?' situation; c) tell his Dad, from whom I am separated, although he won't do anything; d) tell the police; e) nothing. If I remove it, it seems unbelievably easy for him to just buy another.