I've seen that
Seriously, if they ask for diet give them diet. Diabetes isn't visible. Allergies aren't initially visible

I'm not big into onions. Unless it's cooked a certain way. Like onion rings. And I told my aunt I don't like onions. She purposely cooked onion in the burger. I should have faked a food allergy just to freak her out. But we were staying at her house and I didn't want us kicked out of the yard we slept in (well we slept in a van in her yard). Since we were homeless.

People should stop playing around with allergies and diseases.
If I ask for a light coke, even if I'm just on a diet you simply gotta respect it and get over it. Accidents happen but it can be life-threating at times so you really gotta pay close attention and ask them to repeat if you didn't hear something. It's sad how sometimes people have to overemphasize their allergies to get proper service.

I'm lucky that I know of I'm not allergic to anything. My mom's allergic to bee stings. I hope that person with the allergy sued the a-hole for not listening.

I'm allergic to everything.
I'm allergic to mosquitoes and other sort of insects and bugs that are too long to list now, some plants, hay allergies, alcohol and I guess that's what's most important for now. I'm just so happy that I'm not allergic to pets that the rest doesn't really matter.

Geez. That's a lot of allergies. I'm glad you aren't allergic to pets. That's something.

Read a story about a cat being allergic to human dandruff

Weird. I have a friend who's cat was allergic to it's own teeth and hand to have them surgically removed. :<