As Milly says, tenants ain't all bad. We've rented our house for eight years and have a fantastic relationship with our neighbours. We share cars, go out together and have even gone on holiday together. It's a great neighbourhood and I feel privileged to live here.
On the contrary, there were neighbours at the last house I rented (we were seven years there), who owned their place and who were absolutely dire. They and their kids used to cause all sorts of problems. On one occasion he parked his landrover so that the buses couldn't get through - not deliberately, but he refused to move it until he'd walked his daughter to school. Meantime three buses had backed up waiting to get through. He only moved his car then because another neighbour had called the police as one of the buses was blocking their drive. As the kids grew up, they caused or started numerous fights and managed to alienate themselves from all of us - tenants and owners. I stopped my kids from 'playing' with them when their son threw a brick at my lad's head and put him in hospital! It was supposedly accidental but they never even asked how he was.