All sorts of wierd and odd things happen when people are scared, stressed, given disinhibiting drugs and put in very unusual situations.
Medical staff are used to it and if they are not, they soon will be, and will have others around them who have seen it all before.
Two stories for ya, one not mine so ill switch a few details...
I had to go into hospital as my gallbladder was trying to kill me. They gave me cyclazine to ensure I wasn't sick, and were going to follow up with IV morphine shortly after..
The cyclazine kicked in and I started hallucinating, and I was FASCINATED. Stuff was wandering about the walls in my peripheral vision and all the white surfaces (so, a lot, in a hospital!) had cursive writing appearing across it then fading out. I couldn't read it of course, and was trying to see the 'things', they were a bit like woodlice, trundling all about but never quiiiiiiite in view.
A nurse came along and according to her later, I was sat bolt upright on my bed, gripping the side rails as if I were on a rollercoaster ride, eyes like a rabbit in the headlights - she said 'are you ok...' and I said 'well yes but these trundling bugs WONT STAY STILL...'
She said 'did you have the morphine?' I said nooooo... just the cyclazine.. I think these are hallucinations... THIS IS FUN...'
She RAN... to get a Dr, they gave me morphine and it all settled down, but that then disinhibited me to the point where I was able and willing to tell them just how fucked off I was that they'd stopped my fun.
The next day, I was mortified at how ridiculous I'd been..... they just laughed.
A friend of mine is now a well respected medic, but during their first year out of med school, they experienced a really scary neurological 'event'.
They drove to work, got out of their car... took their shoes and socks and trousers off... and then wandered about town, telling everyone they were a Dr, finally actually going into work and trying to sit on the reception desk because they now wanted to ... be a telephone (they didnt say telephone, they sat on the desk and kept ringing and then answering themselves).
Mmm.
Long story short, it they were taken to the appropriate part of the hospital and fixed up which took some time, and they had no idea about the finer details of the whole thing until several months after when they finally returned to work.
It still wasn't the weirdest or most out there thing that has happened there, by a LONG way!