MTL visits the dentist.

Receptionist: ‘That’s £33 please. That’s for the two of you.’

MTL: ‘But there’s only one of me.

Receptionist: ‘No it’s for you and your wife.’

MTL: ‘Oh did she forget to pay when she was here last week?

Receptionist: ‘No it’s for this morning – she’s sitting over there.

MTL looked over the waiting room at a strange lady sitting next to a man with a puzzled expression on her face.

MTL: ‘That’s not my wife!’

The receptionist was new but fortunately MTL remembered what I look like.