Why do they all start with 'D'?

Last night we had a wee sweet tooth and headed out in the car to track down some fat & sugar. Surely that wouldn't be too hard in this country right? Wrong. Just a little bit of cake and a cappucinno was what we craved, but after driving for half an hour we realised our only options were Denny's, Dunkin Donuts, and Dairy Queen. We actually entered the latter but after hearing one of the customers complaining that her 'Blizzard' was too watery, we decided to head in the other direction where I remembered seeing long lines in front of a roadside icecream stand. Fifteen minutes later we were back at my imagined dessert oasis, only to find that it was another damn Dairy Queen. We thought to hell with it, and joined the back of the line. Two minutes waiting and we decided to abort the operation, afraid that upon consuming the product we would begin to look like the customers, a horrifying prospect. Luckily Publix was right next door, so we dropped in and bought a tub of Ben & Jerry's Chocolate Fudge Brownie meets Chocolate Chip Cookie Dough ice cream and sated our sweet teeth to the maximum.