A rule that permits a party to take back evidentiary materials that were mistakenly turned over to the other party but to which the other party would not have been entitled.
Any recovery of a performance-related payment based on discovery that the performance was not genuine.
Money that a party is entitled to keep under one tax provision but is taken by another tax provision.
Someone who is overly submissive to others' wishes.
A coarse mat at the entrance to a house, upon which one wipes one's shoes.