What is the dumbest piece of advice your therapist, doctor, or pdoc has told you? (It's okay if you have more than one! )

Here's mine:
When I was severely depressed, my old therapist said to me: "I don't think you've experienced depression before, so you're definitely not bipolar. You're just frustrated because you have ADHD. If you learn to let go of that frustration, then you won't be like this. You'll instantly feel better, because this is something you're doing to yourself."