Vimes, in the spirit of being a right bastard, dives in to tackle the Mimic to the ground. Whether he gets chomped or not is irrelevant, in his mind. Some people would say that trying to [Arrest] a damned Mimic is a bad idea, but then most people aren't Sam Vimes.

>The Arrest: Weak physical damage, has a 50% chance to Disable the target. The Watchman can expend a turn to extend the Disable.