Also because they are too fat due to the huge amounts of gravy on the train.
They should actually fly more with SAA, their onboard food is so bad these days, dieting should be easy.
Carrying the excess luggage will at least give them some exercise...
As Deanw said, they are weighing people, is this to determine new standard weights as our modern day "low fat" TV diets, fast foods and our strict "no exercise" regimes are bloating us like the Americans?
