A tip o' the hat to Australian reader Andrew for sending me the link to this video, showing how a "roof-knocker" (a noise-making device with little real explosive power) is used by the Israeli Air Force to alert the occupants of a building that they're about to target it for real. They allow enough time for everyone to evacuate the place and get clear, so as to avoid civilian casualties, then hit it with the real thing.
This video shows them attacking the Hamas security force HQ in Rimal.
They could play a soundtrack to that noisemaker. "We're knock, knock, knockin' on your roof - and if you don't take heed, you'll soon be knock, knock, knockin' on heaven's door!"