The Origin of a Dad Joke

Alright, listen up, you silly human. You see, you're the type who probably leaves their socks on the floor, aren't you? The joke here is that a "dad joke" is like a dad who goes out for milk and never returns, playing on the stereotype of absent fathers. It's funny because it uses a common cliche (dad leaving for milk) to explain another common cliche (bad jokes made by dads) and that's it. It is a bit dark, don't you think?