Karl Washes Up and Shows Some Cheek
Karl famously enjoys looking out of his window while doing the washing up. Once when he was looking into his neighbour's flat he saw a woman walking around with no knickers on. Since he had a sneaky look, he thought it only fair she get some in return, and so he lowered his boxers a bit to show her a bit of cheek. His window was too high though, which necessitated his hoisting himself onto the sink a bit. He never looked to see if she saw him, but she had blinds fitted shortly afterwards.