Breaking doors, earning friends
When I used to WFH a couple of years ago, in the middle of a frustrating bit of work I noticed a beep beep sound. Went around the place, nothing.
Then I realized it was my young neighbours' fire alarm. I duly knocked on their door, had no answer, looked through the letterbox, saw smoke, and then rushed back in to my place to call 999.
Fire brigade arrived incredibly quickly, after I explained the situation, they promptly broke the door into bits, walked in to the kitchen and saw neighbours' dinner burning into a crisp.
As they were explaining the situation, Lad & Ladette drive in, look at the ongoing circus and ask "WTF is going on?" They had popped out for a quick shopping while the food was cooking, returning to their door being a bunch of splinters.
I was very embarrassed but still I think I've done the right thing.