The key is to not invite them in, silly. But, then again, who would be inviting trick 'r treaters in? Eh, it’s late, don’t mind me…

I’m reminded of an episode from Stargate when one of the Asgardians, Thor I believe, was able to stop replicators from attacking his home world with the help of one of the main Earth characters, Sam. Thor needed someone of a less evolved/“stupider” species to help with the problem after none of the Asgard scientists could find a way. He said with compliment, “It was your stupid idea,” and Sam smiled back.