Knock knock.

Who’s there?

Three Little Pigs.

Three Little Pigs who?

Three Little Pigs who pile earth onto the electric fence to stop it working, root around all night causing random destruction to that yummy bit of grass you wanted to keep, run around in the morning pretending to be scared of the fence so you have to tempt us back inside with breakfast, watch you kick all the earth off the fence and pull extra earth away from it and adjust it so you think it’ll work next time (instead of doing all those ‘more important’ jobs you came up here to do), and then sit around all day like this.

Ah. Those Three Little Pigs.