Oh he did it to me again.
I bought him a minnow bucket so he could catch his own bait at the lake and he used it to keep a small bass in lakewater.
He left it out in the garage overnight so when I went in in the afternoon... there the DISGUSTING stink was again. A small decomposing bass floating upside down in putrid water.
Luckily it was just water and not maggots and bugs.
I put it outside and made him carry it over to the park to dump it. I didn't want it in my garbage can. He slopped some of the water on himself on the way over and then tried to come in and change clothes.
Ahhhh NO
I had him play for a few hours in it... so he got the idea.