My red tail doesn't usually have a bump in her belly after eating and she is on mice right now. So today they were out of mice and I bought the smallest small rat they had. My mom and I are afraid to feed it to her though because my mom seen a snake choke and die on a mouse because it couldn't handle its size. I just don't want it to hurt her. How do I know if she can eat it? (I know it is supposed to be the same size around as her thickest part right?) And if she starts to choke what do I do?