Walked the Plank

Walked the Plank is a medal in Plants vs. Zombies: Battle for Neighborville. It is awarded for having a Captain Deadbeard stand on a pool.

Origins
Its name is a reference to walking the plank, a method of execution practiced on special occasion by pirates, mutineers, and other rogue seafarers.

Description
What's harder than getting a zombie out of your backyard? Getting a wet zombie out of your pool!

Remember folks: "Save your brain, give your pool a drain."

Strategy
While the hint to unlock this medal might not be very obvious, the requirements to unlock this medal is almost the same as Pea in the Pool: you need to have a Captain Deadbeard stand on a pool. After doing that, the medal should unlock immediately.

A pool near the Out of Shape Human can be used to unlock this medal.

Trivia

 * Pea in the Pool is the plant counterpart of this medal, which requires having Peashooter stand on a pool.