I Guarantee You Will Want to Puke Before You're Done Reading

This evening was the grossest experience I've ever had as a Mommy. By far. But not gross as in something I had to clean up.........
I was hurrying, trying to get supper ready before Paul got home tonight. The house was a disaster area - Brutus had found a mouse at like 5 this morning, so I'd pulled everything away from the walls so that he could get behind and under furniture to catch it; then I went back to bed. Shortly after I got up, since Brutus hadn't found it (he would have let me know by bringing it up on the bed - he'd done it before), I pulled the piano out and there was the mouse! Brutus immediately caught it and I picked him up and threw them BOTH outside.
Then Nathan and I left. I did my cleaning job in town, then headed out and spent the rest of the day at my parents' house painting my little sister's old room. It took longer than I anticipated, so I was later heading home than I had planned.
Anyways. We got back home, and like I said the house was a mess. But apparently it looked like a playground to Nathan, because he ran around playing tag with the dog, squealing happily. He'd found a styrofoam coffee cup and was carrying it around, chewing on the lid. Which was fine, as long as it kept him happy and out of my hair while I was cooking, because I also needed to get started on some friendship bread for Paul to take to work for his shift in the morning.
I don't know if Nathan had made a noise, or was being suspiciously quiet, but either way - I went in to check on him and noticed he had something in his mouth. The styrofoam cup was still in his hand, so I figured it was a chunk of that. I put my hand under his mouth, and he immediately spit the contents into my hand. But rather than the white styrofoam, it was something black. Baffled, I examined it closer. Was that..... fur?
Oh no.
I looked around behind the couch, and there was the rest.
The rest of the mouse.
And not only was it a dead mouse, it was a mouse that the cat had eaten, then he'd thrown it up.
And Nathan was chewing on it.