tgstation/-tg-station — pull request #3524 by phil235 (2014-04-24 23:25:22+00:00)
Title: Fix for stepping on shard

* Being dragged over shards when lying deals damage on random body part
* Mob stepping on a shard has a chance to delete the shard.
* Adds shard injury message for viewers
* Fixes #2467. Adds cooldown for shard injury. A pile of shard only produces one injury message and deals same amount of damage as a single shard.