Also, I don't like paying for stuff.
Unless you take things from people. People are different. Then you should pay for those things by bleeding all over the snow or whatever. (I don't know how money works in your country. In the US we usually just use dollars. There's not much snow right now and having everyone's blood everywhere can lead to public health problems. See also: Ebola.)
Anyway. Thank god there are no people at corporations. And thank god all corporations are the size of Walmart and can easily withstand financial losses due to non-payment.
Well, you should care, because they factor it in by increasing prices for consumers. You're just getting everyone else that shops at Walmart to cover your debt. That's irresponsible, and I see no difference between owing Walmart $10 and owing your friend $10.