Paddy and his two friends are talking at a bar. His first friend says: "I think my wife is having an affair with the electrician. Last week I came home and found wire cutters under our bed and they weren't mine."
His second friend says: "I think my wife is having an affair with the plumber. This week I found a wrench under the bed and it wasn't mine."
Paddy says: "I think my wife is having an affair with a horse." Both his friends look at him with utter disbelief. "No I'm serious. Yesterday I came home and found a jockey under our bed."