Symptom : Drinking fails to give satisfaction and taste; beer unusually pale nd clear.
Fault : Glass is empty.
Solution : Find someone who will buy you another pint.

Symptom : Room is spinning.
Fault : Somebody is spinning your barstool.
Solution : Vomit on person doing the spinning.

Symptom : Feet cold and wet.
Fault : Glass being held at incorrect angle.
Solution : Turn glass so that open end is pointing at ceiling.

Symptom : Feet warm and wet
Fault : Loss of self-control.
Solution : Go and stand beside nearest dog. After a while complain to its owner about its lack of house training.

Symptom : Lap cool and wet.
Fault : Drooling on yourself.
Solution : Change position so that you are drooling on someone else.

Symptom : Bar blurred.
Fault : You are looking through the bottom of your empty glass.
Solution : Find someone who will buy you another pint.

Symptom :Bar moving.
Fault : You are being carried out.
Solution : Find out if you are being taken to another bar. If not complain loudly that you are being hijacked.

Sympton : Bar looks like a circus.
Fault : You're at a circus.
Solution : Go to a bar.

Symptom : The opposite wall is covered with ceiling tiles and has a fluorescent strip across it.
Fault : You have fallen over backwards.
Solution : If glass is still full, and no one is standing on your drinking arm, stay put. If not, get someone to lift you up and lash you to the bar.

Symptom : Everything has gone dim and you have a mouth full of teeth and dog-ends. Fault : You have fallen over forwards.
Solution : Same as for falling over backwards.

Symptom : Everything has gone dim.
Fault : The pub is closing.
Solution : PANIC!!

P.S. Never carry a credit card to a pub.