[I]f the party injured can protect himself from damage at a trifling expense or by *172 any reasonable exertions, he is bound to do so.  Fletcher v. City of Independence
708 S.W.2d 158
Mo.App. W.D. 1986.






Burrell ex rel. Schatz v. O'Reilly Automotive, Inc., 175 S.W.3d 642
"Mitigation of damages" is a well settled principle requiring that a party injured by breach of a tort duty make some reasonable effort to minimize the damages after breach and injury have been inflicted.
See publication Words and Phrases for other judicial constructions and definitions.


Cline v. City of St. Joseph, 245 S.W.2d 695
The efforts which injured party must make to avoid consequences of wrongful act or omission need only be reasonable under the circumstances of the particular case and the burden is upon the defendant to show that some of the consequences of the injury might have been avoided by the exercise of reasonable care on the part of the injured party.

Douglass v. Stephens, 18 Mo. 362
In case of a tort the injured party cannot recover for damages which, at a trifling expense, or by reasonable exertion he might have prevented.