I work in a job where we work 9-6 Monday to Friday and alternate Saturdays ( with another day off in the week). A colleague recently returned from sickness and did a phased return of 9-1 for the duration of the phased return (5 weeks).
She has been back nearly 3 months and decides on the day what time she will be working till some days 2pm some days 3pm. She never does a Saturday.
AIBU to think this is unfair for the rest of the team that she gets to pick and choose her rota?