Allergic to nuts

My 2 year old daughter is allergic to nuts: peanuts and cashews (and therefore pistachios). Going to a restaurant or to someone else's house for dinner is an anxiety-provoking experience. Even my own mother's!! She still put nuts on her famous salad (the only thing she "cooks") even though she is well aware of my munchkin's allergy. My in-laws kept their peanut jar right next to my daughter's treats in the cupboard! HELLOOO???? Can people really be that dense? Apparently so. 

Please exercise tact and sensitivity to those who have little ones with life-threatening allergies. Leave me a comment about this and vent away!!!!!!!!