most facilities have a policy about requiring 2 competencies staff to be present when using a lift. if this is your policy, it really doesn't lookk good (doesnt look good in general to be hones, but especially if this is the case.) you arw legally entitled to your break. you can't put patients in danger to go wat a sandwich, you need to talk to whoever is in charge and say i have a few more tasks, i will need to adjust my break time. any manager/charge nurse who cares about patient safety will work something out with you