I think we've all encountered these families from time to time.
My new all-time favorite quote, courtesy of another thread here at allnurses (paraphrased):
The degree to which families are a PITA is usually inverse to the functionality of their relationship with the patient.
However, you have to get some control of the situation. When I work inpatient, families are asked to step out to the waiting room until the patient gets settled in the room. (and I and my coworkers stop everything and STAND THERE until they comply) When I work in the ED and am transporting an admitted patient, I also send families to the waiting room or cafeteria with the instructions that they have 30-45 min. of "free time" while the patient is transferred.
Under no circumstances would I expose a patient with multiple family present -- they would again get the instructions to step out, and the door would get shut until the patient was settled.
WebMD -- knock yourself out -- but I will be answering questions and providing education only as long as it appears that I have your full attention. If I do not have your full attention, or you wish to consult other sources, then we've probably reached the conclusion of our education session for today.
We'll start again tomorrow when you've had a chance to digest what I've told you today. I will also pass on to the MD that you have questions about x, y, and z.
An "intimidated nurse" has lost the ability to be an effective patient advocate -- don't become "intimidated".