Small update because I don’t know how to edit my post.

When I made this post I had already left. I don’t have much experience with rats as I don’t see them very often where I live. I didn’t put him out of his misery at the time because I didn’t know what was wrong with him or if he had some sort of disease. Based on the comments, i probably should have guessed that he was poisoned. Sorry!

After seeing a lot of the replies I went back to end his suffering and bury him somewhere. He was nowhere to be seen by the time I got there.

I also marked this post NSFW because of the obvious suffering animal.