All this killing and public urination is making you thirsty and overstimulated. You need to go home so you can sit in the dim light of your trailer where you can drink a few six packs and celebrate the death of your enemy away from the prying, judgmental and horrified eyes of the townsfolk who stand around you at this moment as if waiting for the order to strike and kill you all together as a mob.
You stop at a different grocery store and pick up some orange juice on the way home and it only adds a few minutes to the trip so it's worth it in the morning when you want orange juice with your breakfast.
Delicious!