Had a AR sitting around for a while with no magazine in it. I wanted to upgrade the optics on it. Brought out the rifle, Pulled back the bolt and eased it forward, nothing came out. Put in a bore sight muzzle version, with my new sight and dialed it in. Brought it in the house and was putting it away, locked bolt back and a round dropped out! How did I miss this? I must have pulled the bolt enough times but I failed the basic check, look and verify a safe firearm. I'm very disappointed in myself right now, thankfully no harm no foul. I guess a reminder how easily simple steps missed could lead to a disaster. Tell me I'm not the only one who went wtf did I just dodge. Many years handling and just time to reestablish working habits.