I was attending a football game several years ago at Michigan. Let's just say there was "extensive" tailgating beforehand, and I may have partaken.
At some point, after an exciting play where my team (not Michigan) scored to take the lead, everyone was high-fiving and yelling in my section, and a person I don't know in the row behind me talks excitedly to me for 20-30 seconds or so. I couldn't understand almost anything he was saying, but the gist was that he was excited and happy.
My good-natured comment to him: "Whoa, I guess you've had plenty to drink, huh?"
I turn around and sit down. Wife of my college roommate looks at me with utter horror on her face and says "turn around and look at the person behind you, but be discrete."
I do, and it's a teenaged boy with Down's syndrome. His mother was shooting me, shall we say, daggers from the eyeball area.
Felt about 2 inches tall.