A few members have workshops upstairs in attics or dormer bedrooms and just like a felt roofed shed these areas absorb heat and quickly become ovens.
Slight damage to a spray can will reduce its ability to contain pressurised contents by 30%, how many dented pressurised containers are in your workshops?
In my work life I have been called in as a professional witness to a fatal incident where a can of air freshener exploded and took out the front room of a house. It blew the window and front door a clear 20m across the front garden.
Sadly the occupant was in the room at the time.