Unfortunately, once we leave Doon, us Doscos do not have lifetime ownership of school! As the school is at pains to point out, no one is allowed to enter any of the boarding houses without express permission of the housemaster. This is a two decade old rule and while most doscos are respectful of it, some don't and cause unnecessary havoc. So next time you're visiting Doon and are interested in entering your old house, be sure to first knock on the housemaster's door first.