This woman rushes to see her doctor, looking very much worried and all strung out. She rattles off, "Doctor, take a look at me. When I woke up this morning, I looked at myself in the mirror and saw my hair all wiry and frazzled up, my skin was all wrinkled and pasty, my eyes were bloodshot and bugging out, and I had this corpse-like look on my face!  What's wrong with me, Doctor?"

The doctor looks her over for a couple of moments, then calmly says, "Well, I can tell you one thing...there ain't nothing wrong with your eyesight."