It's common sense.
The north is filled with sickly wheezing urchins raised on a diet of coal and pneumonia. The south, with its sub-tropical climes and all-round affluence, is like a lure to you northern povvos. You were bound to jump at the chance to come down.

You should thank me, really.
( Monty Boyce, My cheese game is strong, Tue 30 Nov 2010, 8:55, Reply)