Is there a reason you have characterized this incident as a gender issue?
Was the poor work the work of the nurse who heard you and chewed you out? Do you often criticize the work of your coworkers in a nonproductive manner, expletives or no?
Did you say anything else before saying “fuck” to your coworker, or before she chewed you out? Do you think you were on good terms with her before this incident?
Are you listening to the specifics of your coworkers’ complaints? What are they asking you to do differently?
So Duolingo is lying to me when it makes me say Duo est une chouette? He’s got the little ear thingies, he should be un hibou, non?