If a man comes to your door, fresh taco in one hand, a sopping wet trash bag in the other, and asks if you will hide the bag in your house for the period of one week, in exchange for which you will receive said taco, don't immediately say no.
Especially if it has sour cream and tomatoes on it.
There are a few things to consider first. Chief among them (no, not "What's in the bag?", but that will come into play later), rather "Hey guy, where did you get that taco?" If he stammers and doesn't have an answer, it's a bad deal - he's probably rubbed his balls on the taco.
If he gives you what you feel is a satisfactory answer, follow up with "Who gave you my address?" Being a hermit in the woods, it's not like he was just strolling by your place all will-nilly, and certainly not with a seeingly fresh taco in hand. If he tells you that John Stancil gave him your address at that pig roasting a few weeks back, then you know he's on the level.
Now that you've got this asshole right where you want him, you're now in a position to bargain. Tell him you want a second taco a week later when he returns for his bag. He's lost a decent amount of blood at this point, and may be somewhat irrational, and will quickly cave to your demand of a second taco. When he leaves, throw the bag off a cliff. If he comes back in a week for the bag, just tell him Jim came by to pick it up already, and you'd like the taco now. If he continues jawing off to you, make like you're going to cut his head off, grab the taco, and back into your little hut you go. If you're feeling festive, call the police and pin a murder on him. Don't feel bad, he probably spit in your taco.