There’s apparently a problem with one of the Monopoly secret badges, the Jail Bird Badge. The requirement to earn the badge is supposed to be “Get out of jail, only to re-enter jail on the same turn”, however players are reporting that if they are in jail and choose to roll doubles — but do not roll doubles — they are being awarded the badge.
We even tested it out this morning.

Ooops.
Update (9/11/08, 11am): a few readers have written in to report that this may have been fixed overnight, as they were unable to get the badge simply from rolling for doubles and not getting them.