I had the nurse from Hell for my first 12 hours post-op, in CICU. Not rude, inattentive or incompetent, but (1) convinced that the LESS I knew the better(!), and (2) Not just completely humorless, but convinced (trained?) that humor was a Bad Thing! "Joking and smiling(!) have no place in the work environment, and least of all in a hospital!"
I woke up trying to make light of the situation, and make a social connection to my new "partner", but I soon started looking forward to her breaks! (Her replacement was a fun guy.)
Re catheters and hoses and wires: I was WAY more paranoid about pulling on something than any of my nurses, and it stood me in good stead. (Decades ago, a Red Cross nurse got the blood bag too far away from my arm while I was giving blood, causing a red geyser and a hematoma, and I decided that once was enough!)