Understandable freak out, but no. The proper protocol: give the 911 operator your name, address and a short description of yourself (so the responding cops don’t cap yo’ ass). Then either hang up or put down the phone and get on with the business of defending yourself and your loved ones. The latter option is the best IF you use the subsequent recording as an opportunity to establish a case for self-defense. In other words, you might want to yell something like “Leave now. The police are on their way. I’m armed. Don’t make me shoot you.” Either way, coming off all Dirty Harry to a 911 operator will do you no favors in a civil or criminal courtroom, should it come to that. Which it always could.