When I make pancakes for myself, it's a bit less than a cup of mix with added whole grain cereal to take it a bit above 1 cup. That fills me without being overstuffed.
I really don't like killing mice, especially using something as dishonorable as a baited trap. If they weren't destructive little assholes, I'd give them food and water til the end of winter, and see them off in spring. I can't have them chewing stuff, and getting in my food, so traps it is.
		
		
	 
Or diseased, or filthy enough to use every square inch of your house as a bathroom.
On the other hand, I can't help but think that it's kind of a favor.
Options for dying by properly-baited trap: Suffocation if it snaps on their lungs, or a quicker death if it snaps on their neck.
Options for dying in the wild:
- Eaten alive.
- Disease.
- Severe injury that leads to disease or bleeding out, or inability to get food.
- Starvation in winter.
- Freeze in winter.
- 
Maybe old age, not likely though.
Things can be pretty shitty out there if you're a small prey animal.
Some manner of treaty would be preferable.
- Eat only what is left for you.
- Use a dedicated bathroom area.
- As much sex as you'd like, so long as you're sterilized.
- Various areas are off-limits.
- Some machinery can be really dangerous. Live here at your own risk.