Do your younger sibs come in your room or the bathroom without knocking?

First off, I am the youngest.
And I don't enter a bedroom/bathroom -should the door be closed- with out knocking, because I'd hate to walk in on my 18 year old brother, yaknow?

My 5 year old sister does...and sometimes the other ones do, but not on purpose. And it's my first reaction to lock the door anyways.

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It's a really old house, no locks on any of the inside doors. The upstairs bathroom was built into the attic.

yea mine does
but he's like a year and a half haha
i lock my door anyways =P

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