Jane2, I understand your feelings behind "these people". It is a loaded term, and especially here on a messageboard where you cant hear voice tone, it could easily come off as insensitive.
Geaj, I dont think you understand what types of sounds a Down's person might make. You're making the remarks and interruptions sound "cute", which they are not. Just like in church, the first few times my cousin interrupts, sings off key, yells, people turn around and go "aww!" but then the 20th, 30th time he says something, and when he starts going "I farted!" "f**k you!!", well its not so cute anymore.
Lakezurich, I gotta hand it to you. I grew up going to 80 billion Down's events, from the National conventions to weekly park district events to religious education, and I would never be able to tune out those noises in a b-way show.
Somebody mentioned that they still wouldn't turn around and give the person a glare or something. I wouldnt do that either--I know if someone turned and glared at my cousin, he'd probably spit in their face or swear at them. I would be ABLE to tune it out of course, just like I do when I take Frankie to a movie or watch a tv show with him, but that doesnt mean after paying $111.50, I should HAVE to tune anybody out.