Sometime is not wat ppl want to snoop the signal is becos they never secure it
if u on ur computer it will auto detect and u are on .....
It happen once to me i was online when i happen to check ...i was on other ppl network
so is this stealing? Haha
Our network is like our house.... who leave their house door open without securing it
Is the same as their network .......
U must have selected that network & connected to it last time, thus ur pc remembers it.
So whenever that network is avail since then, ur pc will auto connect to it.
There's a way to disable or prevent ur pc from auto connecting to other's netowork.