buy
the
milk
or steal it
According to your mannerisms, since the store has no attendance, you legally own the milk. Free groceries WHOOP
loot gun
use knife to cut his heart out, and then eat it
If he's from the past, there's no reason to let a perfectly good heart go to waste, so you relieve him of his organ and his firearm. You decide not to eat it because you don't know how many weightwatcher points it is. What do you do now?