My housemate has a lot of habits that are annoying, but most of them don't interfere with my ability to be productive, so I let them slide.
For instance:
Her dog sheds everywhere and she rarely vaccuums. Maybe every couple of months.
Spoiled leftovers - I won't go into detail
Her dog eats more than twice as much as mine, but I buy dog food twice as often.
Her cat shits and pisses EVERYWHERE in the basement and she doesn't clean it up.
She tends to leave dirty pots in corners and never clean them out.
She is a junk-hoarder, and one end of the basement is completely packed with garbage that smells like cat pee.
So, you know, I go to vent about the one thing - being yammered at when I'm trying to get set up for work in the morning - that I just can't let slide, and a bunch of people treat me like I'm being unreasonable.
And it really doesn't matter what UT was TRYING to tell me, what he TOLD me was that I have control issues and should change my boundaries so that being interrupted and distracted while I'm trying to make my living stops bothering me.
Seems like if I was willing to move THAT boundary, I might not still be successfully self-employed, you know? Some boundaries help us accomplish our goals, and continuing to pay my bills is one of mine.