...and the door clicked behind me!

I stepped outside for a moment. We were still enjoying weather in the 20's (Celsius) and I needed something from the van. Click. I heard the front door lock behind me. Before I could turn around I heard the mail slot clatter and a voice, somewhat hollow sounding, called through it.
"If you tell me I can go into the classroom (aka St Nick's Work shop) I'll let you back in." Remembering that the side porch door was not locked I tore off around the corner and clambered over the fencing we have put up to protect Elsa, but before I could reach the door knob the culprit was standing there grinning at me as he twisted the lock in the knob. However one of the panes is missing so I simply reached in and unlocked the door. Much to his dismay - and my pleasure. St Nick's workshop is STILL off limits and I did not have to climb through a window to keep it so either! (I think I might leave that pane like that until after the 25th!)