An Afghan goes to see the doctor after six months in the UK. he tells the doctor that he can't sleep, can't eat properly, has got no energy and generally feels depressed. The doctor tells him to go to the local market and buy a large bucket, take it home and to get everyone in the the house he shares, to use it as a toilet for the next week and not to empty it. At the end of of the week, he is to get a stick and to give the buckets contents a good stir and then to sit and inhale the fumes for ten minutes and he is to do this three times a day for a week and then to come back and see the doctor. two weeks later, the Afghan comes back to the doctor, the doctor asks him how he feels?. the Afghan says " I feel great, I am eating well, sleeping well and feel much better.what was wrong and how did you cure me?" The doctor said "You were just homesick for the smells of Afghanistan"