A German couple who went to a fertility clinic after eight years of marriage have found out why they are still childless - they weren't having sex.

No this isn't a joke and knowing Germans it may well be that they thought they needed permission to have sex.

You may think I am joking but I once invited a friend to play golf with some friends. His response was classic German "and who gives me permission to Golf?" I told him I did. Evidently in Germany you go to the hitting range with a golf Pro until you can hit the ball well enough for them to allow you to play. By that standard I'd never make it on a golf course there.

So I can't help but wonder if they were waiting for someone to authorize them to have sex.