No; I had asked the captain during the afternoon if he was being given rest periods and if he was being fed properly so that he wouldn't have reason to complain that we were mistreating him in any way.
The Home Guards often employed their military power and authority in harassing and mistreating actual or suspected sympathizers with the cause of the South.
Officers of the galleons were tried for mistreating seamen, for smuggling, for exceeding the limit of merchandise allowed, for giving passage to lewd women and to persons travelling on the galleons without permission.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "mistreating" in a variety of sentences. We hope that you will now be able to make sentences using this word.