LEV338 "You must not steal, or make a false denial, or lie [by oath]" [this verse]. Our sages said (Bava Metzia 61b), "Do not steal with the intent of causing another distress, " i.e., one should not say, "Let me steal so-and-so's utensil so that he will be upset and distressed, [to teach him] to be more careful in guarding his utensils -- afterwards I will return it to him." It is also forbidden to take a utensil from his neighbor's house in the manner of a thief, with the intent of using it and then returning it. He should also not retrieve his own object from behind the back of the one who stole it from him, to avoid appearing like a thief [himself].