Frickin people....

He could have gotten off his butt and picked it up,
but then she could have have picked it up and keep her mouth shut! He may have been going to pick it up and when she started screaming it pissed him off.

As far as courtesy it seems it isn't taught to kids any more. It's like some parents don't have or take the time.
As a parent shouldn't you take the time. isn't that part of being a parent teaching right from wrong and teaching common courtesy and values. It seem like schools aren't much help any more either.
I applaud the parents that do and take the time to do things as a family.

Kids see all this crap on social media and other media from celebrities, politicians, etc. being rude, name calling, and bullying. And we wonder where they get it from.

I know when I was a kid and wasn't polite I definitely heard about it from one or both of my parents.