What was this one about?

I always write my strips a few months before I draw them - I like to have a plentiful supply of things to draw ready for those times when I'm not feeling very inspired. (I'm currently writing gags for mid June.) However, as I just draw the frames, write the dialogue and then leave the frames blank, that can mean that sometimes I'm left scratching my head trying to work out what I meant when I return to draw the scripts after a three or four month gap.

This script looked like this:

Frame 1: Toaster.

Frame 2: Pching.

Frame 3: Blank.

I don't know what I was originally thinking of, but this is what I ended up with.