A Welshman, walking through a field, sees a man drinking water from a pool with his hands.
He shouts, “Paid a yfed y dwr mae’r gwartheg yn cachi yn y dwr!” (Don’t drink the water, there’s cow shit in it!)
The man shouts back, “I’m English, I don’t understand you!”
The Welshman calls back, “Use both hands, you’ll get more in!”