It's bad to give gifts people are allergic to.
Sam's girlfriend, who is allergic to some foods, has a birthday today.
Sam wants to buy her a gift.
Sam checks with one of his girlfriend's friends for an appropriate food gift to give, then buys it.
Sam buys some food for his girlfriend without checking the ingredients to see if she has an allergy to it.
Sam's girlfriend loves the food.
Sam's girlfriend has an allergic reaction and goes to the hospital.