Me three! I have so many blurry photos of myself that I actually set C3 to Shutter AF+AE, f/8, Auto-ISO, and other settings to make the shots as idiot proof as possible
I use back-button AF. Great for birds (bump-focus), useful for focus recompose. Only downside is if you hand your camera to someone else, but green-square mode cancels back-button AF.Me too!
I usually switch to manual, pre focus, pre zoom, set a very small aperture and then give the camera away. Usually works fine.
EOS 5DIII, EOS 6D | Rokinon 14mm f/2.8, TS-E 17mm f/4L, EF 24-70mm f/2.8L II USM, EF 35mm f/1.4L USM, EF 85mm f/1.2L USM, EF 100mm f/2.8 Macro USM, EF 135mm f/2L USM, EF 70-200 f/2.8L IS II USM, 1.4x III, 2x III | 600-EX-RT x3 | EOS M + EF-M 22mm f/2