I've always thought that I'd be taken out by a police sniper several hours after I finally snap and take to the water tower of my old high school with a .50 cal sniper rifle.
To answer your question, it depends on how closely I follow my ancestors' genetic predisposition. If I keep up my health and feel I can go out with dignity, no. If I face a slow, withering death, I assure you I will be master of my own end.