Who's been removing my slug pellets?

With all the wet weather we've been plagued, like everyone else, with massive slugs wreaking havoc munching the plants in the garden. My wife has been putting slug pellets out and said that they were disappearing at a fast rate in one part of the garden. Well, the culprit has been exposed, a vole, pictured below. I've looked on the net and apparently they have a liking for slug pellets because they contain starch and they aren't poisonous to them.

An odd topic I know and perhaps may of you may think I belong in a padded cell along with this thread. But if you've had a similar experience of the disappearing slug pellets, here's a possible explanation.

Steve