just to share, I lent my camera to an acquaintance yesterday for him to test his new lens. As he moved through different AV values from F3.5 to F22 in AV mode, he left the camera setting at F22. I put my lens back on but the AF select was toggled to Manual Focus in the process
This morning I did not notice the AF select and took a few photos of something interesting (snap shot from vehicle) without checking my settings (as I don't usually lend my camera to anyone, I usually expect the camera to be in ready condition. I was mildly shocked at my forgetfulness that I was shooting at F22 and manual focus, meaning I had not really focused on anything when applying first pressure on shutter button, but thankfully due to huge DOF everything relevant was in focus.