Jaysus. You don’t even need a gun to protect yourself from a cat. A piece of wood is all it takes to learn the bast’d some respect.
Daylight Savings Time to-do list:
change the clocks,
swap the smoke detector batteries,
watch the cat scene from Re-Animator...
I would grab it and throw it across the room. Hopefully, it would calm down after smacking against the opposite wall.