The nice thing about being at work is my responsibilities don't effect me directly. I zone out and just do my job all day, once my shift ends I don't think about it until the next day, and if there's something i didn't finish I can just finish it the next day or someone else will take care of it.
The responsibilities I have at home never really go away, there's always more food to buy and cook, always another mess to clean up, something to maintain, bills to pay, and those kind of responsibilities you cant just ignore, they will always be there and directly effect you.