Well, I'd first call the police on you for breaking and entering into my home then obviously trying to squat on my property, an illegal no-no that needs to be addressed. Once you are removed from the property, I'd have the police confiscate the desk and perhaps the illegal drugs that fill the drawers that most likely induced the thread in the first place if they are to be found in the first place.
Now, if we are talking about you renting or subletting a room ( AND IF
electricity [lights are redundant option to this equation as its a part of electricity] and water are included in the rent) in said house, then clearly the desk is yours to move around your said rented space or completely remove from the living space altogether.
Perhaps in the rental agreement that if you don't pay your rent and are in arrears then perhaps your desk can be used in lieu of payment. That's if your desk is somewhat worthy piece of furniture.