There's a thread called 'AIBU to not understand this rule' or something like that. Lots of posters saying they don't understand about allergies and how people cope, linked to a school imposing a nut ban.
I've posted but I'm sure lots of you know more than me about the nut ban issue and it would be good to educate some people on what it's like living with allergies. They are asking for people to explain.