 In "Cattle Queen of Montana", one of Tom McCord's men is shot by Sierra Jones, and Farrel (Ronald Reagan's character, who is an undercover U.S.Marshal), another of McCord's men and witness to the shooting, lies about how the altercation took place to one of the gang leaders, and leaves despite being asked to wait at the headquarters for Tom McCord to show up.In Martin Scorsese's film "The Departed", Leonardo DiCaprio's character, Billy Costigan, whose identity as an undercover police officer has been discovered by a wounded man, is asked to stick around at the gang's headquarters until all of the gang members' backgrounds have been checked, but leaves anyway despite the warning.