For many people it appears the primary function of taking their dog out is to prevent it emptying it's bowels at home. The walk is a chore. Where the animal excretes a convenience, and the aftermath of no consequence.
It disgusts me that there are places I cannot walk or ride because they are so heavily contaminated. I've had people mock me for picking up after my dogs when out in the countryside. Yes it's not pleasant to carry, but I took my dog to that place and I have a responsibility to others to leave as I find.
I've harassed people who have walked away without picking up, offered bags and been laughed at. I've also come pretty close to picking it up myself and throwing it at someone who was particularly obnoxious.
Yes, there are good and decent people out there, but their numbers seem to be diminishing. As I age I don't see society improving, and I'm more misanthropic with each day that passes. This 'problem' is, as I see it, a marker of how irresponsible and narcissistic Society is becoming, whilst it pays lip-service to the importance of common values, sharing, caring and benevolence. People don't care enough to take responsibility, they pay their taxes (or not), so someone else will take care of it for them.
Cars parked with engines running- I f@#$ing hate this. I've been threatened, told to f@#$ off, mind my own business, and simply told 'no' for asking people to turn them off.
I cycle to work because I want to, I can, and because I should.
I am constantly more convinced that we've destroyed our planet and we're past the point at which it was saveable. If we could only get rid of all those people who just don't care at all, we might have a chance yet... Unlikely though, I know 
