My 76 yo mother was gardening at the end of her garden when a melon came flying over her back hedge and smashed against her caravan 
Why would you even do that???? Back neighbours have grown up children. My mother can be a bit feisty ( think Catherine tates nana but scarier)
Can only think they were wanting to thow it into the alley but thew it too hard.
My mum said she launched a barrel of expletives but heard nothing - no laughing no "oops sorry"
Why would anyone do that??