<human>: Condense the text into a few key points

So, here's the story:

I was hanging out with these friends, let's call them Mina and Vlad. Mina and I were talking about occultism and rituals because we're weird like that, and Vlad was making fun of us, saying that such thing as the supernatural is a complete lie. So, being the brilliant darling he is, he decided that he'd prove us that there's no such thing. So he wrote a piece of paper in which he essentially gifted his soul to Mina, and stated than when nothing bad happened to him, we'd see that he was right.

Of course, Mina and I were already preparing a cunning plan to have fun with it. First of all, we told him all the possible consequences of selling his soul that we could think of, and made fun of him for not only giving it away, but doing it for free. Then we googled "how to get my soul back" and read him some stories about people who'd done similar things (obviously fake, but he's not the sharpest shed in the tool or whatevs). At this point he started to look nervous but tried to conceal it. I casually commented "good luck with those cramps in half an hour", and effectively, in more or less thirty minutes he sat down and didn't stand up again, but he never even mentioned there was something wrong. On an unrelated note, he started to say that he "needed the contract", but never explained why, and Mina finally convinced him that she wouldn't give it to him because it was hers now. His face was priceless.

This was about four hours ago, and currently he's so blatantly trying to avoid us. Mina and I have already planned making a voodoo doll but that will take time since none of us knows how to sew. This is when you guys come in.
<bot>: A guy gave us his soul as a gift to prove his scepticism and now he's scared as shit of what we can do with it.