You know, like those people walking three or four abreast, blockading the entire sidewalk so nobody can get by...what are rude things people do on the sidewalk (and thereabouts)?

Feel free to include neighborhood encounters, dog-walking rudeness, and anything that happens in or around or relatively related to being a person out walking. (Grocery store aisle blockaders will be covered in another section.)

Here's how I dealt with a rude parker in my neighborhood.

Waiters and waitresses, what do really rude customers do?

If you're a customer, tell me your stories -- nasty servers, flagrantly rude customers...lay it on me.

Please send flight attendants and other airline personnel here to vent. It isn't just the customers who have something to complain about -- by any means.

Flight attendants, please post your pet peeves and suggestions for what passengers need to do to make flying less rude and horrible for all of us. (And any horror stories.)

Is it really that hard to figure out what the outcome's going to be for the next person?"

What is it that keeps people from walking up to the counterperson at a cafe and saying, "Hey, man, you're out of toiletpaper?"

That's just one of my experiences. I'm sure you have plenty more. Lay 'em on me -- and please wipe the seat when you're done.

For your amusement, here's that classic Marshall McLuhan movie line scene from Woody Allen's "Annie Hall."