Why the lies and greed and selfishness by some customers?

what do you care? those people are just props anyway.

if you turn them around, you might even see their wind-up key.

Nowadays, it seems like people don't feel guilty about lying or getting over on someone if it's a business. It's like, they feel like if they're not directly hurting an individual, they're not hurting anyone. Maybe they feel like businesses make enough money anyway, so their little lie isn't hurting anyone. I think the justify it by saying, "it's just gas", or "it's not like i'm hurting anyone".

Our society has people so screwed up that people feel like they're not even responsible for their own decisions. People sue over everything now days: if you slip on ice in front of the business, the business can be sued for negligence; if you get into a car accident after getting drunk at a bar, you can sue the bar for serving you too much alcohol; lawyers are all over TV begging people to join class action law suites about just about anything imaginable.

I honestly don't fully understand the psychology behind this behavior because i'm the type of person whose more likely to pay for extra gas that I didn't use because I didn't pay attention to how much was in the car when I got it, than to spend time trying to get over on the company.

A lot of people believe that the world owes them everything. They are selfish and self serving, and don't care who they hurt or what it costs to save them a couple bucks. They feel they deserve that discount, and will do anything to get it.