The picture is of the left doorpost which has the following items attached in a vertical line from top to bottom: a smoke alarm, a fire extinguisher, and a gas blowtorch. Text has been added: If (fire){ (fire alarm goes here) fire-- (fire extinguisher goes here) ; }else{ fire++ (gas blowtorch goes here) ; }
https://o.mastodon.au/media_attachments/files/110/608/178/562/393/592/original/99e32b7cfe551843.jpg