I bought a small mouse yesterday to feed to my bp; however I returned to my house to late in the night to feed her. So I placed the mouse in a container for the morning. Today when I went to it, it was covered in urine, when I picked it up by the tail there was a large drop of urine ready to fall of its belly. I am not sure what i did to make this happen, and if I should go ahead and offer it. Any suggestion?