Well, I was interrupted while masturbating today.
OK, so about roughly 4:20 this afternoon, I was sitting up in bed in my T-shirt and pajama pants. I had just started to look at my collection of naked men porn picture files I have saved. I hear my chiuaua barking in the next room. Now since the weather has cooled down, we have our wintertime problem at my house of these squirrels that seem to mistake our roof for rent-free apartments. The noise from them moving around up there is a daily thing we put up with until we can find a permenant solution to stop them from coming back. So, I figure the dog is just barking at the squirrels until the squirrels drop all the racket for the time being.
I ignored the dog and learned the *hard* way that the dog barks for a reason.
So I'm settling down in bed and enjoying my porn. As I start to harden, no sooner do I reach down into my PJs to get down to business, do I hear a knock at my back door.

So, naturally, I'm thinking, "Aw, jeez, come on..."

Whoever this is had better have a damn good reason...
So I go to the back door (still clothed in my T-shirt and PJ pants, but decent). And low and behold, it's none other than the city water dept. "Yeah, we came to check out your sewer...", and I'm like, "Huh?"
Here's the punchline: The guy who's the head of the work crew is none other than a male ex-classmate from back in high school. They explain to me why they are there at my house, to fix on the sewer. I tell them that there must be some mistake, because I didn't call a sewer issue in to city hall. They're like, OK. They apologize to me and I promptly say 'thanks', and shut the back door. If one of those guys spotted my semi-wood hiding underneath my pajama pants and boxers, they didn't say anything about it.
I was polite and everything to them. But in a situation like that, how do you politely give someone the rush-off without making them feel like they're being rushed off?