You are free to have this leak but bear in mind, it's not mine, so don't bother me if the links/program/source/whatever stop working. I take no responsibility of this, use at your own risk.
(First of all, sorry for my english)
I'm tired of being a leecher, all time saying "ty" or "Let's see".
Its nice to found things and all, but I want to colaborate with the community too.
I only tested this method in Spain, with the SSID "MOVISTAR_XXXX" but I think you'll can do it too with other SSID and things.
You will only need to download a program, I let it here with screenshots to make more easy to you to understand how to do this method for free Wifi.