Well you know I have decided, based on evidence I collected that just as bakers have the baker's dozen, chicken keepers have their own number. The chicken keeper's dozen is in fact 16 rather than 12.
See, I have ordered a half dozen eggs thrice, and all three times I was sent 8 eggs, not 6. So the chicken keepers call 8 half a dozen? So that means I have only 1 1/2 dozen chickens, not 2 dozen at all