I have heard such people discuss things while I was near them. I am not typically an eavesdropper but heck, if they are going to have discussions while standing next to me, it is not as if my ears have an Off Switch.
Now experienced Nurses (and RRTs) can easily walk away. The education costs were usually covered long ago. Sure the pay is good, but putting up with the BS, well in my case, you cannot pay me enough.