I got my current job a few years ago when the company had a second office near my hometown. A few months later they closed that office and offered me the opportunity to work from home instead. I accepted, as their other office is a few hundred km away from me. I have to come in to the physical office less than once a month now, plus the occasional meeting with customers. This means that on 90% of days I can work from home, wake up at about 8-10 because I don't have to drive to my workplace etc. Except for the lack of interaction with coworkers, it's a situation many people would dream of.
But my parents aren't happy with this arrangement. They are harassing me because they have to wake up at 5:00 "like every other normal working person". They continually ask me favours when I am working. It started with things like opening a jar of jam, then getting my smaller sibling from school, mowing the lawn and things that sometimes take four hours or more - all during work hours. I do my best to cover this up from my boss by taking my mobile phone with me in case somebody calls, and doing the work I missed at night instead. When I refuse to do these tasks I get harassed because I don't help at home like my other sibling (who doesn't have a home office so they can't ask him) and because I am "just sitting at home at the computer".
In their eyes they consider me jobless, with nothing to do, gaming all day because they think computers are just for that and that working people don't sit at home in front of the computer all day. Sometimes they even say things like I should get a job. When other people ask them what I do they often say things like that I am just sitting at home all day in front of the computer, sleeping till 10, etc...
How can I get my family and work-life together, and get my family to respect me and my job?