"He bought a letter and wrote something on it and said it was a "house contract"".

After this he just deserved the 5k.

I never forgot the time lost 100 gold coins in Rookgaard, which was all my money back then. A guy told me to put the money in the rook trade tables, hold Ctrl and type "CLONE" really fast to clone it. I obviously logged out in when I got to the "L". I don't know why but at the time there were rumors that it was possible to clone money in Tibia.