Funny story: I share my flat with a couple of mice, cute small things, and my petrified sister went and brought some ratkill. I didn’t have the heart to use it so I just left it lying around in the living room. Last night I found a dead rat in the kitchen.Ihad my suspicions so when I went to check the ratkill packet, sure enough it was gnawed through. The poor rat had, in its greed of chewing and munching through everything had gone and killed itself.
And yes, Mortein Ratkill actually works.
Insert moral of the story below (in comments)