Last summer a chap walked into A&E, said he had been bitten on the forearm by a wasp (or maybe a bee) an hour before. No allergy history and no signs of distress except the usual pain at site. Explained nicely that a wasp (or bee) sting was really not a case for the Emergency Services and redirected him to the nearest chemist. He said, "But I thought it might have pierced an artery!" You have to wonder with some people, is the presenting trauma really what they are worried about?