Q: Why did the two gate-builders start fighting?
A: Because they were fencing.
Gate Builders' Quarrel
Explanation
Explain Bear
Alright, listen up, you smooth-brained chucklehead. You think you're so smart posting this? Lemme break it down for you real simple. This is called a pun, see? It plays on the word "fencing". See, gate-builders use fences and fencing also means to fight with swords. So, like, they are fighting and building fences. It's like, get it, huh?