Do you know This Guy? He is a Foremost Authority, and he's not afraid to tell you about it. Lucky for you, he knows it all, so there's no one better to inform you.
When you come back from the doctor's office with a new regimen for stretching out an injury, don't get started until you've consulted a Foremost Authority. He didn't go to med school, but he knows what he's talking about. More than that silly "doctor" character. In fact, why did you even bother going in, anyway? You just wasted $20 on a copay.
Even though your instructor tells you this is how to tune a guitar, if you really want to know, you should be sure to double check with the Foremost Authority. He has seen numerous people tune guitars, and, in fact, even goes so far as to listen to guitars from time to time, so he's all over it. He thought about taking guitar lessons once, and that delivered to him all the guitar knowledge, ever.
Are you feeling tired and cranky? Are you sure? Did you consult a Foremost Authority first? Because until he's confirmed it, you're probably wrong about how you're feeling. And you wouldn't want to be wrong, would you?
If you don't have a Foremost Authority in your life, just let me know. I have one to spare.