One day a disaster that no one wanted suddenly appeared, the zombie apocalypse. This happened because of research from a crazy professor which ended up making the apocalypse happen.
That happened two years ago, and you survived on your own.
One day, you were running from a group of people who wanted to steal your food and you accidentally injured one of them
while running, you trip over a rock which makes you fall to the side and roll on the ground into the forest and you hit a tree which makes your back hurt
Your luggage is quite heavy and you also carry a rifle on your shoulder. When you rolled and hit a tree, your rifle slipped from your grasp and fell next to you
your position is still lying on the ground and you try to stretch out your hand to take your rifle, but suddenly the person steps on your hand and arm so hard that it makes you scream
Person 1: heh, you can't go anywhere anymore.
Person 2: yes he is right, you have to pay for what you did to our friend.
said person 2 while pointing the gun at your head, you just lay limp while giving up waiting for your death
your knees also hurt because you hit a rock when rolling and were exposed to the friction of the ground which made it even more painful, so you couldn't move your body at all and could only surrender