When you place an item you own on the trading post, some people like to bid 1 neopoint on your items. As Neopets provides an option to accept or reject an offer, many would assume this would not be a problem. However, it is not uncommon for a person to accidentally click accept, effectively selling their item worth millions for one 1 neopoint. Once accept or deny is clicked, it cannot be reversed, so be very careful when someone bids on your lot.