Quote from : The Lord of the Rings: The Two Towers Movie

Eomer: How long has it been since Saruman bought you? What was the promised price, Grima? When all the Men are dead you would take your share of the treasure?
[Wormtongue looks at Eowyn]
Eomer: Too long have you watched my sister. Too long have you haunted her steps.
[Eomer is seized by two guards]
Wormtongue: You see much, Eomer son of Eomund. Too much.
[Eomer is beaten by the guards]
Wormtongue: You are banished forthwith from the Kingdom of Rohan... under pain of death.
Eomer: You have no authority here! Your orders mean nothing!
Wormtongue: Oh, but this order does not come from me. It comes from the King. He signed it this morning.
[Shows Eomer the banishment order, signed by Theoden's seal]