In roughly that order.
At about 3:30 this afternoon I went to the Gallery by way of Argos. Went out of front door, opened car, piled in several things I needed to drop off at the Gallery, drove to Argos, queued for half an hour buying poncy radio-synchronised alarm clock (seems slightly silly to buy one the day after the clocks go back, but it'll be one less thing to hassle me in March). On to Gallery, watched things and played games and in particular introduced hilarityallen to Mao which was fun, finally gave Owen a lift home and then came back here.
To find the one vital thing I'd forgotten to do when I left: shut the front door! It was gapingly wide open and had been so since 3:30. Evidently the number of things I'd been carrying when I walked through it had overfilled my poor little mind and shutting the door dropped out of the other side.
Cue cold sweats and frantic running around to see if anything was missing, to say nothing of a bit of healthy caution in case any putative burglars were still on the premises. But no; apparently nobody at all (hostile or friendly) had so much as noticed, and nothing seems to be missing.
Excuse me while I wibble hysterically for a while…