My original plan was to take a can of gasoline that I had acquired (don't ask) and place it in a storage area with a lightbulb. after coating the house liberally I'd puncture the bottom and let it leak in the storage area and sabotage the light so it would spark and then I'd light the fuel and marvel at the fire. Luckily privet drive is full of detached houses so no collateral with this plan, just a big mess and a spectacle and a tragedy for the neighbours.