I was flying LAS-DFW back in December (on a 757). A lady in 9C mentioned to the pilot when he was walking through the cabin that he husband was running late. He said "We wont leave without him". I was sitting in 10A and we were boarding through the door right by row 9. The GA came on and talked to the FA saying that we were loaded and ready to go. 9C starts throwing a fit that her husband wasn't on, the pilot said we would wait, and how her husband had a pacemaker and couldn't be left alone (why she wasn't escorting him to the gate, I dont know). The GA shrugged her shoulders and explained that they dont hold planes. 9C continued to fuss, and called her husband, who happened to be at the Gate Door (but it had been closed). Another GA opened the door and he was allowed to board, he was seated in 9B. 9C kept on the entire flight to the FAs on how rude the GA was and how her husband had a pacemaker.

9C's fit caused enough of a delay to hold the plane for her husband to get on. The thing I still don't get is how a elderly person with a pacemaker is exit row qualified (his wife was about 20 years younger than him).