I've always had a problem speaking up but I've quickly learned to get over that.
I told this one before on another thread:Once, instead of receiving Mannitol, I was given about 20cc Lidocaine as an IV push by a nurse at my center. I went into cardiac arrest (I was dead for about two minutes), but came back to tell the story because of some fast thinking technicians doing CPR and giving me about 2L of saline.
You are a very lucky man, as I'm sure you know.