What types of behavior create a lawsuit-fertile environment?
Unbecoming Behavior. Indiscreet, cruel, and vulgar conduct as well as inappropriate humor.
Unethical Behavior. Lying, deception, discrimination, favoritism, and failure to consider the common good.
Uncaring Behavior. Insensitivity to the needs of others, disloyalty, and indifference.
Unskilled Behavior. Committing and/or tolerating avoidable mistakes and errors that could have been prevented by reasonable amounts of training and diligence.
Keep in mind that the employer may win lawsuits triggered by this behavior, but time and money will be squandered on legal fees. That's a big reason why demanding decent and professional behavior is one of the most effective complaint-reduction strategies.