Mick and Paddy go to the local river every Sunday morning, hire a boat and go fishing.
One day, they were in a particularly good spot and they were reeling in fish after fish.
Mick turns to Paddy and says, “This is the perfect spot for fishing. Quick, Paddy…put a mark on the side of the boat so that we know where to come next week!”
Paddy smacks his head and replies, “Don’t be so feckin’ stupid, Mick”, and goes on, “We might not get the same boat!”