Warugi-ga nakatta-ni shiro, higaisha-o kizutsuketa. (Even if they really didn't mean any harm, they did hurt the victim.)

Situation 1: Mr. and Mrs. Shiba are watching a TV program about the problem of bullying at a junior high school.

妻:  いじめる側の生徒達は、いつも「遊びのつもりだった」と言うのね。