Rats! Ugh.....
Obie retrieved a dead one 2 days ago from parkland. He had to have his chops thoroughly cleaned, & chew a parsley denta stick....
You could have washed his mouth with 50/50 water/Dew (yes, I know. I'm a walking ad for them... but it IS good stuff).
Seriously, I hope he's okay. I'm always wary of a dead rat as they could have been poisoned which could contaminate our dogs.
Talking of rats (or squirrels in a cute outfit), beware of having squirrels in the garden. If they decide your attic looks like a new home for them, they can chew through any electrics and cause a problem (not to mention the mess they make gnawing through everything else).