Working From Home: A Non-Users' Guide

(The cartoon really doesn't have much relevance, but I couldn't resist!)
I'm very lucky that I work from home. I love the solitude; I adore setting my own schedule; and I get more work done in one day than I did in a month at the office (not really, in case any former bosses are reading this!). 
However, there's one thing that makes working from home insanely frustrating: when people don't get the 'working' bit. Do I call it 'slothing around at home'? No. 'Stuffing my face with Twizzlers at home'? I do not. Funnily enough, I call it 'working from home' because, yanno, of a little thing called work. 
So, to assist others in my predicament, I thought I'd compile a non-users' (i.e., those who work out-of-home) guide to aid understanding. 
1. Basic premise: I do actually work. Hard. 
2. No, I cannot go out for coffee mid-morning for 'just a couple hours', because I'm working.
3. Yes, I'd love to go shopping with you at 3 p.m. but there's a little thing standing in the way: work. 
4. There's a reason I didn't answer your call to chat for thirty minutes. It's called a job. 
5. Oh, hello, house-guest. Yes, please stay for the night or two. But don't assume it's okay to extend your stay by five days and expect me to play host. And don't expect me to entertain you 24-7 because 'it looks like I'm free'. I'm not free, actually. I'm working. 
(This post was brought to you by the letter G for GRUMP).
Harrumph.
And oh yes, have a happy Wednesday.