Long time reader, first post. I just finished a pretty wacky Ambassador game. I thought I was absolutely going to murder my opponent because he failed to utilize the amb and my deck was thin and moving by mid game. I even bought curses and started to send them over to him. I totally forgot about possession and nearly lost because he sent 3 of my provinces back to the supply whilst gaining 2 himself.
http://dominion.isotropic.org/gamelog/201303/08/game-20130308-064616-e76ac1b9.html