You are correct. But, there is a difference between mice and rats. I've witnessed this: the rat problem was terrible enough in our clubs kitchen that it was used as the last resort with the huge rats some, the size of a cat! Or a raccoon! I've never seen rats that big before, its unbelievable...
Sticky pads are the best. But, its not a quick kill. They step on the glue pad and Boom! They're Never coming off of it unless they skinned to the bone.
Problem is: they stay alive and you have to give the rat a wack or if they actually manage to come off the Sticky pad, they are skinned alive...