I did this once posting my absolute maximum about a day before auction. I had to do this since I was out of town the next day. My max bid was $999. When I got back, I had won the auction where the final price was: $999 (whats the chance of that?). I checked my emails, saw that I was outbid about 10 min before end, and realised that the bid must have been cancelled by seller before the same bidder raised the price to mine. It was a clear case of a seller bidding on his own auction from a different account. Needless to say I did not pay for the auction and told the seller where he could stick that suit
Tee hee. Always wanted to do that ie. create a clone account and bid on the item I am selling so I can jack up the price. But never got around to doing it.