We had a speaker in Pomona, CA die of a heart attack on the stage. Its more common than you think.
Our water was out at the KH and a guest speaker had a dry throat, kept coughing, couldn't go, so one of us (me) went to the store for a bottle of water.
And for the stupid one me. Recovering from surgery, our PO forgot and assigned me out for a talk, 100 miles away. He demanded that I go and keep my assignment, so as not to put them out.
I show up for the talk, in pain, on drugs. I try and give the talk, it lasts about 25 minutes, as I then struggled back to my seat.
Afterwards, they want to know why I was such a trooper, when they have over 20 qualified speakers in their hall. I mentioned this to him and when it came to Elder recomends later, he cited my bad attitude over the assignment. UGH!