Levy Fines on Fatties

"Celtic tribes certainly took physical appearance and prowess very seriously. Despite a love, and surplus, of fine food and drink they did not tolerate obesity. Rather than banish the overweight members however they would levy fines upon the fatties till they slimmed down again. It was a sign that the person was taking too much food and not working hard enough in return. It could also prohibit a man from getting married or be grounds for separation from his woman, Celtic woman being as fierce and fit as the men and doubtless disinclined to share a bed with a beer-bellied husband she can beat up herself."
From Ask Metafilter, brautigan on Celts and obesity.