You walk down an empty corridor, hoping not to run into zombies.

A fire extinguisher in hand, in case you have to fight off the infected.

Suddenly you are grabbed by the shoulder, and you instinctively want to hit the stranger with your weapon. Noticing this, he jumps away from you and raises his hands in a peaceful gesture

"whoa whoa, take it easy, baby"

"Don't worry, I didn't get bitten"