What is it with the lavatories in the 3-car 165 units? The lavatorial space is very large, bigger than that of a Voyager and yet the actual 'facilities' are crammed into the corner, so that your knees are effectively in the sink!
Maybe they don't really want you to use them, they provide the facilities as stipulated in the contract but if no-one uses them they save money on cleaners, products and emptying them.
Oh, don't get me wrong, there is sufficient room in these lavatorial chambers to hold a cocktail party or a small jumble sale, it's just that the 'facilities' are crammed right into one corner, for no apparent reason.