Not me but the lady sitting next to me. She had a tight connection in Denver and left her bag with charging cords, some cash and a credit card on her inbound flight. She asked the flight attendant during boarding if there was anything he could do. 20 minutes later he handed her, her missing item. The captain on our flight worked with the flight attendant and tracked it down for her. Very cool. The passenger was very polite. The crew was very professional. And United pulled through.