it's actually quite simple. Normally the minimum bid is 0. If you bid 0 you will drop out.
In this game the minimum bid was supposed to be 19000. therefore if you bid 19,000 you should drop out. The fact that someone else screwed up their bet is irrelevant.
(hide) You can send a message to your friends with just one click by adding them to your friends list and then clicking the small envelope by their name. (pauloaguia) (show all tips)