150!

A couple were in the restaurant. They noticed that the waiter's fingers and thumbs were in the soup he brought them. They were annoyed but said nowt. But the same thing happened with the main course - his finger and thumb tips were in the gravy. They fumed but decided not to spoil a beautiful evening.

But when the puddings arrived with his digits in the custard, it was a bridge too far. "Oi, mate, what the hell do you think you're doing!"

"Well, I have arthritis in my fingers and thumbs and the doctor told me to keep them warm at all times..."

"That's disgusting! You'll get no tip from me and you can shove your arthritic fingers up your arse!"

He said, "I do, in between courses..."