SYMPTOM: Feet cold and wet. FAULT: Glass being held at incorrect angle. ACTION: Rotate glass so that open end points toward ceiling.

SYMPTOM: Beer unusually pale and tasteless. FAULT: Glass empty. ACTION: Get someone to buy you another beer.

SYMPTOM: Opposite wall covered with fluorescent lights. FAULT: You have fallen over backward. ACTION: Have yourself leashed to bar.

SYMPTOM: Mouth contains cigarette butts. FAULT: You have fallen forward. ACTION: See above.

SYMPTOM: Beer tasteless, front of your shirt is wet. FAULT: Mouth not open, or glass applied to wrong part of face. ACTION: Retire to loo, practice in mirror.

SYMPTOM: Feet warm and wet. FAULT: Improper bladder control. ACTION: Stand next to nearest dog, complain about his house training.

SYMPTOM: Floor blurred. FAULT: You are looking through bottom of empty glass. ACTION: Get someone to buy you another beer.

SYMPTOM: Floor moving. FAULT: You are being carried out. ACTION: Find out if you are being taken to another bar.

SYMPTOM: Room seems unusually dark. FAULT: Bar has closed. ACTION: Confirm home address with bartender.

SYMPTOM: Taxi suddenly takes on colorful aspect and textures. FAULT: Beer consumption has exceeded personal limitations. ACTION: Cover mouth.