As guilty as you feel, I think you did what you had to do-you don't want to have a rat infestation-they can carry so many diseases...
I know how you feel though. Every winter we seem to end up with a couple of mice in our house-just looking for warmth and maybe a little nibble of food I suppose. Hubby sets up the mouse trap in the kitchen cupboard-baits it with peanut butter and the poor little buggers fall for it each and every time. It makes me sick with guilt, but the same thing-don't need our family getting sick with their diseases so there really isn't any choice.
However, I won't even look in the cupboard that holds the mouse trap-that is my husbands job-and he's so sweet(sarcasm)-he makes sure he describes in great detail how each poor dead mouse looked when he found it...like I need to know!
I think it's time we get a cat!!!
LIG