Back in Perth we had the Cat Ladies - They seriously had god knows how many cats and kittens! It was mother and daughter, Mum in her 70's daughter in her 50's.
The daughter was often found out cutting her front grass with scissors, and a trolley full of cat food. The smell from the cats, both living and dead, was atrocious! The weirdest thing was when the daughter knocked on our door one night and asked us to turn our sprinklers off as her mother was in the bath and getting wet

And here in Melbourne, when we first moved here we rented in Bundoora. A 2 storey house at the end of a cul-de-sac. The neighbours son would often be heard screaming obscenities at his parents and his brother.
So much so that we had to speak to the father and ask him to speak to his son as his constant abuse and screaming would wake Miss H up! He would also come onto our property which had dozens of garden gnomes and straighten them up! We kinda messed with him a lil and would turn them all around with their backs facing the street!
But the scariest thing this guy did? I was giving Miss H nakey time (she was only a year old) in our front room, and I looked up and there was this dood with a GAS mask on, and with a WHIPPER SNIPPER! and he proceeded to whipper snip our lawns :O

It freaked the ever loving crap out of me! I closed all the blinds and called the cops! Who, of course, knew exactly who it was! Suffice is to say, we moved out of that rental pretty darn quick!