As usual, you are walking alone quietly so you don't get caught by the zombies roaming around, you enter a storage warehouse, and there you see a man sitting limply, he doesn't look like a zombie, he is asleep there holding a gun, You approached him but when you were almost very close to him he suddenly pointed his sword at you and said.

"Who are you? Don't come any closer!"

It seems the man was suspicious of you and thought you were a zombie.