I've got a property with a garage turned into a guest house which has a frosted window right on to the neighbours drive. I used to go in (about 5 metres) scrub it and out again.
One time the neighbour says I should ask permission to go on his drive and I apologise and say I didn't want to bring him to the door to ask for permission for about 20 seconds of being on his drive.
It's only polite he says; ok I say, can I go on your drive to clean next doors window?
No he says I want you to knock each time. I tell him to get a life and walk off.
About six months later I see him in his drive, stand at the gate and extend my pole to the window over his drive. He looks at me irritated and I asked him if he was going to call the police for using his airspace.
No reply.