As long as you act in good faith, most courts will uphold your honest HR decisions.
Recent case: Angela had back surgery and took. While she was off, her employer discovered what it considered . The employer imposed an improvement plan and eventually fired her for poor performance and for allegedly offering a co-worker prescription pills for a headache. Distributing drugs at work was against the rules.
Angela sued, alleging her employer punished her for takingleave and was wrong about the alleged prescription offer.
The court rejected her claims. As to the drug distribution, the court noted the employer spoke with the co-worker and Angela and honestly believed the co-worker’s version of events. It tossed out the claim. (Riniker v. UnitedHealth, et al., No. 12-CV-2875, DC MN, 2015)