Dave,
There is a 50 / 50 chance, but by explaining politely the point is probably better taken, which had not been the case.
If we catch him doing it again the issue is proved beyond doubt.
If something looks to good to be true, it probably is.
Is a gold Rolex for £25 going to be real, not a chance.
In all honesty we should be targeting the manufacturers of these fakes, thats what they are fakes, lets not dress it up re-issues, boots whatever, at the end of the day they are fakes.
Take your £25 fake Rolex into an authorised dealer for a new battery and he has every right to smash it to bits, it is after all a fake.
I think the best plan of action is to stop the things being made in the first place, after all it is on our shores where they originate.
Martyn