My favorite control experiment! Tell somebody you did something and ask them what the results were, but don't actually do the something. "Honey, I doubled the

My favorite control experiment! Tell somebody you did something and ask them what the results were, but don't actually do the something. "Honey, I doubled the salt in the pasta this time, how does it taste?" "Oh, it's really salty". "Ha-HA! I didn't actually add ANY salt!" (do not actually do this to people you like or who like you)