You've Been Cursed?!

An elderly woman begged you for food. You ignored her. She muttered something you couldn't understand, and you went about your day. Unfortunately, she just cursed you. Now, every time you touch another person, something happens to them. **What happens? That's entirely up to you.** Turn people to stone? Make them spontaneously combust? Give everyone an uncontrollable appetite? Choose your curse and try to survive the consequences of your own terrible manners.