Friend of mine works for a bigger oil and gas company downtown and he has a severe peanut allergy and he notified his work of it. They had some sort of lunch celebration last week and the admin who ordered the food let them know that there are people on the floor who are allergic to peanuts and other nuts. He ate the lunch and had a extreme reaction and was taken to emergency for it. There ended up being cashews in one of the dishes.
His company has a big concept of safety and it almost seems like its being brushed under the rug. I have a nut allergy as well and it made me aware that notifying people just isn't enough.