As a complete aside about addresses and because falsehood number one needs some clarification: even when you are living on a houseboat you are required to have

As a complete aside about addresses and because falsehood number one needs some clarification: even when you are living on a houseboat you are required to have a mooring license unless you want to be classed as a "constant cruiser" (moving beyond the parish borders every [arbitrary interval]) and in order to get this license you have to provide British Waterways with a fixed address - which by their own account they do not check. I'm somewhat biased against BW as my (disabled) father had his boat repossessed under a "section 8" with no warning and was made homeless because he did not supply them with a "fixed address". When confronted a few months before the eviction BW even refused to take an address my father's advisor offered during the meeting because they knew it wasn't his. Even after confirming that they do no background checks on addresses and knew full well that most boaters were using addresses that were not their own. There are real human costs to these sorts of things and my dad was one of those people caught up in a self reinforcing loop that saw no solution. Fortunately it is an edge case, and most likely the result of corruption - the £30K+ boat was eventually sold on by BW for £5K and my dad never saw a penny. He can't even contest the decision in court because it would cost a small fortune.