My boy has a tennis racket. His best mate Dan has a tennis racket. His big sister has a balcony on the first floor of our house. She gets mad when the boy and his mate knock tennis balls onto her balcony. It’s great sport!
Our house has a flat roof with a single drain in it. The drain opening is slightly smaller than a tennis ball. It rained last night. And our house leaked. Mostly because the tennis ball was acting as a plug and water on the roof was almost knee deep.
Strangely, once the tennis ball was removed the water stopped pouring through the light fittings 🙂
Small boys have alot to answer to!