Children
We may love them dearly, but from the day they are born kids are nothing but bother. Scribbling on the walls, sticky finger prints everywhere, toys and games cluttering the house and it doesn't stop there!
After watching 'Power Rangers' they then become adamant they want to be judo master leaving you to pay the fees - only for them to attend once. Even when they fly from the nest you're not free. In their twenties they will be badgering you for money and will still need lifts to a train station.