Maybe the reason people force writing on you is because they believe you actually have something of value to say. Much like these cocktail party doctors.
My own recurring problem comes from my grandfather, who is constantly asking me if I've gotten around to reading the faded, 20 year old manuscript I said I'd look at in one of my weaker moments. From what he's let slip, I've gathered that it's at least semi-autobiographical, and includes a sex scene.
I just can't bring myself to read it.
I've never had this happen to me personally, but I've seen people doing it plenty of times on Yahoo Answers. These thirteen and fourteen year old kids will post work that isn't up to par yet, and when someone offers sound writing advice, they get angry. Kids that young aren't looking for a critique, just praise. Many of them didn't have thick enough skins yet either.
The majority of teenagers who posted things on Yahoo Answers were just looking for ego boosts. I usually kept quiet if work posted on YA wasn't that good, but if they were talented, I'd tell them so.
Please underline the part where I said I knew I was a better writer than any of these people.
Or you could read the part where I say I'm uncomfortable with being put on the spot and suddenly spending an hour listening to student newspaper article recitations. If being uncomfortable with that makes me egotistical, I'll live with that and assume that anyone who finds that egotistical would love to spend that hour listening to the student newspaper articles when just trying to have coffee.
My issue isn't with people asking for my opinion--I'd gladly critique friends' writing or give general advice to new writers. My issue is with having writing forced upon me rather than being asked. It's a bit similar to doctors complaining about being asked for medical advice at cocktail parties.
I like your idea, Shara, and saying that before you read anybody's writing is good to do in advance. If anyone I don't know super-well asks for a critique, I'll try that.
BUT. If I said yes to every single MS sent my way, I would simply have no time to do my own work. I have to prioritise. Also, while some people genuinely want my input (though I have no idea why), most see a published author not to get a really in depth beta read, but more as someone who could help them get published, and that's a little irritating to be honest. I don't like feeling used.
I know you were making a joke, but truly imagine what it is like to have people think you OWE them something. I will pay it forward as much as I can, I reply back to every email sent me and in detail, making sure to answer any queries I can about the publishing world. I am very loyal to friends, and will drop everything to read their work if they have a deadline looming or whathaveyou. And every once and a while, if I happen to have the time, I will say yes to doing a critique. Yes getting published is amazing, but it isn't perfect and it comes with its own set of stresses and frustrations. You may look forward to having this problem in that you look forward to getting published, but truly it is an issue just as one has issues before one gets published.
If I said yes to every single MS sent my way, I would simply have no time to do my own work. I have to prioritise....
Anyway, it isn't simply about one or two people asking, it's about the numbers adding up.