My parents went to London and asked me if I wanted anything. I thought of a variety of answers. Should I say "no" – I can get anything on the Internet? Instead, I sent them on a mission – to find a round collared dress shirt, which they did. I decided to get it "autographed" by Ushio – a Japanese action painter who dips boxing gloves in paint and punches his canvases. Even at 80, he still stripped down to shorts for an afternoon demonstration. Turning my back to him, I let him punch me repeatedly in the back.