I spotted this sign on a car today.

If I found someone putting such a sign on my car, they would get a few blows from my baseball bat.

Considering this was in the countryside, with no houses near by, the person who had put the sign on the car, must have had to go out. So why is it OK for the person putting the sign on the car OK to go out for a walk or cycle or jog, but not this person.

The person driving the car may be elderly or have children.

And what harm are they doing, walking where no one else is walking?