I was on a work trip once with a colleague who was both gluten- and lactose-intolerant. While there, we went to dinner at an Italian place in northern New Jersey. I wish I could remember the name. When she asked the waiter about dishes that she could eat, they brought out a whole menu full of stuff. Turns out one of the owner's relatives had the same killer combo. My colleague - no softie, far tougher than I am in many ways - was almost in tears. She couldn't just find something. She got to choose among many dishes that she actually wanted to eat. For people who truly for-real have these kinds of issues, that can be an unimaginable luxury.