[God creating sharks]
God: Ok give them 3 rows of teeth.
Angel: Seems excessive but ok.
God: And make them mean as hell.
Angel: WTF y.
God: BECAUSSE I SAID SO.
Angel:...
God: And make one of the types have a hammer for a head.
Angel: Why do I still work for you?
God: Because I’m the only employer as of right now.
Alright, listen up, buttercup. This joke is about God making sharks super scary, and the angel is like, "Dude, chill!" Then God makes a shark with a hammerhead just because he can. It's funny because God is acting like a total goofball boss, and the angel is stuck dealing with it. You're probably like that angel, always cleaning up after someone else's mess.
