We are aware of the loose floorboard in the bathroom (after you hid prawns under it) and have filled in the gap under it. This should mean that it is of no further interest to you.
Instead, it means that throughout the day we are intermittently treated to thwap-wappawappawappa as you try out your new musical instrument. Sitting on one end, hooking your claws over the other and pulling up until the claws slip and the floorboard snaps downwards and vibrates must be fun, from the number of times you do it a day.
However, one of these days you are going to shut your tail under it or the board will break. Worse, it will catapult you into a wall, or even the BATH. So shutting you out is in your own best interests, and we are not torturing you.
P.S. Stephen, that door is closed to keep your sister out, not because there is anything interesting behind it. Please stop opening it and letting her back in.