Just like you wouldn't go and pee in someone's toilet without permission of the owner of the toilet, you also shouldn't be using someone's unsecured Wi-Fi Network without permission. Under everyone's favorite set of laws, the Computer Fraud and Abuse Act, this could be considered theft, so make sure that if you don't have the person's permission, they're at least not the type of person to report you before stealing their Wi-Fi.

FactIf for some reason you have an unsecure network, there's actually a way to detect if someone is stealing your WiFi.