If his allergy is so serious that tingling lips sends him to the ER, presumably after using his Epipen, he should have told the server that he has an allergy. Anyone with a shred of common sense knows that all ingredients have the potential to come in contact with each other in a kitchen.
We're going to wind up with 20 page menus since it is apparent people are too clueless to take care of themselves and need to be hand held in every aspect of their lives.
See Crank. See Crank Walk. Walk Crank Walk.