L315.5.1. Elephant killed by mouse who runs up open end of trunk to head and there smears poison over his brain (WTF - Weird Things in Folktales)

Welcome to my A to Z Challenge blog series titled WTF - Weird Things in Folktales! Find the introduction post (explaining the theme) here. Find all other participating blogs in the comments of each day's post on the main blog! You can also follow us on Twitter and Facebook.
L is a fun little category within the Motif Index that stands for Reversals of Fortune. It includes unlikely heroes ("L10. -