I go to a store, buy some stuff, forget to scan something at the self checkout machine, and leave without paying. When I get home, I realize that I didn’t pay for something, so I go back to the store, apologize to the clerk, and pay for it.

I go to a store, intentionally hide some stuff in my coat, and leave without paying. When the store realizes that I’m trying to leave without paying. When they confront me, I deny it and accuse them of having “gellis12 derangement syndrome.” When they call the cops on me, I refuse to cooperate with the cops. When the cops find the stolen goods on me, I refuse to give them back. When the cops forcibly take them back, I go online to rile up an angry mob and tell them that the stolen goods weren’t actually stolen because I thought about paying for them and that should be good enough, before telling the angry mob to attack the cops.