Two freight loaders, busy loading containers into a tired old 747 Freighter on the ramp at Keflavik, in the -17 degree blustering snow and wind:
Loader 1 (shouting over wind): "You know, it can't get much worse than this; here we are, loading this rubbish in the freezing wind, at two am in this god forsaken wasteland - I'm thinking of quitting you know!"
Loader 2 (stands up straight, with a shocked look): "What?!!? And get out of aviation?!?!"
Aviation's a bit wierd like that...
But on a more serious note, when asked about the job, I always recommend becoming a doctor instead....