Picnic Ruiner

If an effect refers to a card, spell, or permanent that has an Adventure, it won’t find an instant or sorcery spell on the stack that’s been cast as an Adventure.

If an object becomes a copy of an object that has an Adventure, the copy also has an Adventure. If it changes zones, it will either cease to exist (if it’s a token) or cease to be a copy (if it’s a nontoken permanent), and so you won’t be able to cast it as an Adventure.

You can cast Stolen Goodies with no targets. If you do, you won't distribute any counters, but you'll still exile it as it resolves, and you'll still be able to cast Picnic Ruiner later.