By neighbors’ dad insists on mowing their lawn at least twice a week, especially when I’m trying to enjoy my hammock.
How can I sabotage their mowers so it looks like normal wear and tear so that he doesn’t mow the lawn more than once a week.
inb4: suburbs suck
ETA: How does it take you three hours to mow a quarter acre on a riding mower?


If it uses a combustion engine, you could try putting something hydrocarbon-soluble in the fuel, like polystyrene. Some of it will get past the fuel filter and foul up the carburetor (and probably the spark plug) without causing permanent damage to the engine. Removing the blockage is trivial, all you need to do is soak and rinse the parts in fresh gasoline, but the diagnosis and disassembly requires some effort and technical knowledge.
Napalm in the gas tank…
I like it