A young man out walking spies an old man on a park bench crying his eyes out. So the youth goes over to see if he's all right. 'Are you okay?' he asks. 'No, it's my birthday today, I'm 82, ' blubs the old man.

'82!' 'But you look great for your age, you should be happy, ' continues the young man. 'Yeah, and I got married yesterday too, to a 25-year-old blonde bombshell, ' explains the old man. The sympathetic young man thinks he's sussed the old man's misery and continues his line of enquiry, 'And you're too old to fulfil your conjugal responsibilities, I suppose?' 'No, not all, we enjoy a full and loving sexual relationship and get down to it five times a day. That's not the problem at all, ' says the old man, who is still crying. 'Look, mate, I'm 25 and even I don't enjoy that much sex, ' says the dumbfounded lad.

'So why are you crying?' The old man says wistfully, 'I've forgotten where I Live!'