Your dog poo flies into our face

Down a hidden lane, in a village on the edge of York, are some very big, rather lovely historic houses. On the grass verge outside one of them, is this sign.

In my world view, a passive aggressive sign on a grass verge is far worse than a dog poo. However on this occasion I forgave them because of the line in small print.

"Your dog poo gets into the mower and flies into our face."

That is quite unfortunate.