I didn't know you had rats.
Yes, when we were kids, my mother let us take in a couple rats from someone who was moving. They were the black and white markings. I don't remember the females names, our favorite was the male, Speedy Gonzales. We let him nap on our bed with us and and join us at the dinner table. Mom didn't seem to mind too much, except when Speedy tried to nibble on 'her' food or the butter. Speedy loved butter! We had them for a year or two, I forget, but then some kid at school who wanted them and had a nice set of cages. We gave them to him because we only had these big wooden boxes for them, and we were already getting tired of having to clean the boxes daily.