If you are connecting to some-one elses connection without permission you are pretty much breaking the law. Do you also break into their house and steal food from their fridge?
i have permission from some ppl in house, just not the one who pays the bills. i have talked to the other adults in the house, who told me to use it. its not in the bill payers name, its in her sons whom i'm friends with. he dont know password. she puts it in 4 everyone