Can you imagine 
- hell is more like the lack of air con on the tubes.
I got on the Victoria line at 7 o clock in the morning today and as soon as I stepped on the train was faced with a wall of heat - thank heavens it was an empty train - really is bloody unpleasant 
And there you have reason number one why I refuse to work in town. 
And reason number two could be;
It is common knowledge that diseases and viruses can be spread by people in confined spaces, but few people are fully aware of the number of far more serious afflictions that can also be transmitted via train travel, including carpal tunnel syndrome, rickets, foot & mouth disease, cancer of the cervix, triakadekaphobia (fear of the number 13), emphysema, myxomatosis, halitosis, blindness, blind faith, eczema, ebola, poor taste, lighthousekeeper's eye, death, at least five different strains of hepatitis, three of the same strains of crows feet, overdependence, squinting, skin failure, loss of shoes, pregnancy, panic disorder, piles, paralysis from the waist up, shortness (especially of breath), and Windows Explorer infestation.
