Answer:
I walked in the backyard turning on the hose to fill up the pool, then I saw it..... My neighbors cat, my arch nemesis. I got the hose ready to spray this feral beast, when my mom yelled, "JACK, get inside the house and put on your swimsuit! Stop terrorizing that poor cat!" I went inside and put on my swimsuit. The rest of my family got in the pool and I came out back to see the cat. But this time I was ready to fight him. I had my water gun ready and I had a pool noodle as a sword. The cat gave me the stink eye and walked back home through a hole in the fence. I yelled, HEY! I didn't even take a hit on you yet and you're already retreating?! My older brother threw a beach ball at me and we started playing volley ball.
Was that short enough and was it funny?