What would you do if 300 mice had just gotten out of their cages in a pet shop where you worked?

I would run out. Run for my dear life. Nothing worse than a pack of rodents running around and putting your life at risk. Mice are scary little creatures, you never know where they're at, could be crawling up your pant leg. The only answer is to run... I may lose my job, but that's better than losing my life.