I was behind the original poster in section 13. He was the only person standing in the entire region of about 6 sections. The two guys were 75 years old, and I don't blame them.
This person went nuts on them when they asked him to sit down. I was with my dad, who is about the same age, and he couldn't see, either. He didn't say anything, but if he had, and this guy responded to my dad like that, I would have been thrown out for decking him. There's being a fan, and then there's being a disrespectful jerk. 30 seconds in, I was fine with sitting, and nobody complained when there was a big play or a big defensive possession and everybody stood up.
Bad advice telling people to get nasty and mean, these two old guys simply went to security. A lot of these old guys go to games with their sons, and it's going to be a problem if you're going to treat people who have been going to the games for 50 years like that.