Here's a picture of Ed Miliband eating a bacon sandwich awkwardly, taken in May 2014.
It's an image we might have forgotten by now - if Ed didn't keep bringing it up. Like in a speech to party members in July. And in a speech in January. And tonight at Channel 4/Sky News pre-election debate - twice.
First he joked about the moment when asked about Cameron during an audience Q&A. "I don't know if we'd have a pint. We'd share a bacon sandwich or whatever."
And then he went for it again, saying of Cameron: "I'm not going to win a contest for who looks best eating a bacon sandwich, I think we can all agree about that."
This picture of the audience also neatly sums up the reaction on Twitter.