Did the hug - a full 10 seconds with kiss on cheek. No ambush necessary. 'That's 10 seconds of my day wasted' was the response. I suspect he secretly enjoyed it as much as me. It wasn't caught on camera, but here's an earlier tender moment, after we'd stayed up all night watching the Open University course on Using Theodolites in Surveying, just for the hell of it. We were young and foolish then.