Zac thinks for a few moments, then says, "You're right about the receiver, but I don't really feel right about cutting its wings off. I do have an idea, though."

After snipping the antenna to the pixiebot's receiver off, he reaches into his pocket and pulls out a rubber band, which he then wraps around the little machine's wings, holding them together without damaging them. "There," he says. "Now it can't spy on us or escape." Looking down at the pixiebot, he says, "So, who sent you? I mean, it'd be pretty hard to believe that you purposefully got yourself stuck in my dog's tail, but it's also really unlikely that you just happened to be close enough to get stuck."