What is so different in the world today, that common courtesy and considerateness is a thing of the past?
We went to a Halloween event last night at one of those re-created living history museums. It was fun, but I did witness a few acts of inconsiderate adult behaviour.
To the OP, I like your Bono avatar
As of rudeness from adults, unfortunately it happens alot. I teach my kids to say "please" and "thank you" and be respectful, even tho my DD is not respectful all the time

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I think I'm pretty considerate. My pet peeve also is when other adults are not considerate. I know even at my church, there are people I know who I thought were friends or acquaintances, that just brush me or my DH off. We don't fit in their "clique", so they don't talk to us much. I know one mom I know who just kinda brushed me off after I asked if my DD can join her Girl Scout troop. My DD is special needs and I think some people are scared of special needs children for whatever reasons. Sorry to vent like this, but it happens sometimes to me, esp from some people at my church.
The thing is, the same family who is known at our church (I've known this certain family for years), their DD was up on stage at church last night, saying how wonderful it was they raised money for one of their close girlfriend to go to a church camp retreat weekend coming up. And I know this close girlfriend of their DD is not hurting for money for the retreat. Same family tells me "no" for my DD to join her Girl Scout troop a couple of weeks back

I don't understand that, where is the compassion for others, besides having compassion for a very close girlfriend of their DD's??
Edited to add: Same mom above brushed me off again about over a yr ago. I called her to ask for prayer for my DH, just a quick asking of prayer, as my DH had just lost his job at the time. We were all in a community church group together, so I thought it appropriate to ask for a quick prayer request and then get off the phone. Well, she had me on hold for 20 minutes on her cell phone b/c she was helping some friend of hers, about softball practice that day. She got back on the phone finally and told me to call someone else with my prayer request. I thought, how rude!!
Yes, you can even find rude people from your own church, not all of course, but some.