Of course he was familiar with security; during the campaign, everyone had known that there might be incidents, that the candidate might be hurt. The candidate was mixing with The People, and some few of The People were just naturally evil or insane. There had indeed been a few bad moments on the Massachusetts campaign trail: nasty hecklers, nutty protesters, vomiting drunks, pickpockets, fainting spells, shoving matches. The unpleasant business that made good campaign security the functional equivalent of seat belts or fire extinguishers. Security was an empty trouble and expense, ninety-nine times in a hundred. On the hundredth instance you were very glad you had been so sensible.