Years ago I was working in local cinema as a student job from time to time and used to sleep after shifts at my uncle's. Uncle did not had internet but there were so many wlans all around. Since I had nothing to do for hours after shift, I downloaded Backtrack linux at home, made live dvd of it and saved a two articles of "how to hack wifi" to text files.

It took me 4 hours to break WEP, since I was total lame, and it was the only one WEP around. They also had mac restrictions set to router, so I changed my mac address to one of their devices, logged in to router and added our mac address. For my uncle it was complete magic but since he is total geek to linux he liked it.

Fast forward weeks later. When I came to my uncle's house he was downloading like ton of linux distributions. Literally each one. Gigabytes of data. I told him not to do so because sooner or later neighbour will notice, but he did not care. Guess what, he notices, probably slow internet and (maybe) bigger bills, I do not know, but owner just changed protocol to WPA2, not changing password. So the story continued for almost 2 years. Felt a bit sorry for neighbour but did not expect such an outcome. I just wanted to watch youtube videos and scroll social networks, keeping low profile so no one notice.