Happy Valentine's Cartoon.

 The theme for this week's cartoon was set by Tim Cordell, who won last week's contest. Was it a theme or a caption? I can't remember, so I've gone with a caption (in a bubble - which I don't often do). It was of course "Happy Valentine's Day". It must have been a caption. Quite a tricky one I thought. Initially I thought of machine guns, violin cases, gangsters, but I'm almost 73% certain that