My former next door neighbour was a child minder. Our drives were separated by a fence, and it was obvious that the parking space up the side of my house didn't belong to her property as it was between my house, kitchen windows overlooked it, and the fence separating the drives.
A couple of times a week, this woman would calmly drive up the side of my house and sit there in her car for half an hour, whilst ignoring me rapping on her window or squeezing past her car, Eventually, I had enough, and when dh came home one night, we blocked her in with the Range Rover, and dh went and had a walk. I didn't drive the Range Rover, so she couldn't get out until dh got back, and even then, he was in no hurry to move the car.
We explained very carefully that that was out drive and not the NDN, but she couldn't see that parking there would inconvenience us at all, as there no one using the space at the time she arrived. After that, she parked in the drive in front of the house, which we own, and NDN had rights of way over only, and again, she was blocked in as dh couldn't get his car in the drive. Stupid thing was, there was a car park down the lane at the village hall.
I couldn't believe the sense of entitlement she had, or the fact that she must have terminally stupid not to work out that where she was parking was my drive and not that of the NDN.
Thankfully, NDNs moved soon after...they got stroppy when we complained about it.