Nope, I made it up. And it's a corollary to Murphy's law. Stork's Second Law of Familial Relations is: Well-known family members cannot be trusted to advise well with matters such as your weight, self-esteem, personal appearance, etc. Either they'll be too nice to tell you the truth, or they'll be douchebags and tell you whichever one makes you suffer most. The likelihood that someone will tell you the blunt truth in regards to something that may or may not hurt your feelings decreases exponentially in regards to how much time they have spent in your house. However, this CAN be used to obtain an accurate reading of said matters if the correct modifications are applied. For example, if Uncle Jed says you're fat, it'd be a perfectly good idea to tell him to screw off. If the resident douchebag at school tells you you're fat, it's nothing to be concerned about, but may have merit. If a good friend tells you you're fat, it may be worth looking in to. If your mother says you're fat, then my god son, you are a freaking truck and you burn more calories walking to the couch than Michael Phelps eats in a day. LOSE SOME WEIGHT. This is also one that falls under the Laws of Good Ol' Common Sense.