welcome Janamy.
Hate to say it but that was a stupid move on your friends part......but forgiveness is part of any friendship.
Since your iPad was JB'en already did you by any chance save your SHSH Blob or click on the "Make my life Easier" image in Cydia in the past?
Sorry for the long overdue reply, was stuck at work and haven't got time to log in. Oh ya, you are so right!!! Real dumb move from my friend...hahahah..
My IPad was JB by another friend, thus I know nuts about it, worst now my Apple ID has problem, it prompted me invalid ID and I tried creating a new iD it prompted time out, gosh, so I wrote to Apple Support to ask for help, hopefully they can give me an answer.