You were looking for supplies in an old abandoned supermarket since you have run out, while you were keeping canned food in your backpack you heard how something made them fall

You hit yourself quickly and you grabbed your weapon so the address didn't hear the noise and you saw how an infected person had caused some boxes to fall because he had stumbled, you were going to shoot him but...

"N-no wait, I want to help y-you."

The gag he had in his mouth spoke sharply