If I wasn't in a different stall at the time I probably would have said something, but by the time I was done the situation was over. There wre a lot of shocked people and several did comfort the woman with the walker and say (kind of loudly) that that woman was out of line. Believe me, I doubt anything anyboyd could have said to her would have made a difference and maybe even lead to a more aggressive confrontation.
Regardless of what it is, why do people feel the need to correct other's behavior? I don't like the saggy pants look, but that doesn't mean I can go up to them and tell them it's offensive. It seems like a good 90% of the time the behaviors people feel the need to correct are little things that really don't affect anyone directly like wearing a hat in a restaurant, baggy pants, etc.
Like I said, if it affects you directly (like line cutting, smoking in a non smoking area) or is a safety issue I have no problem with speaking up. Or if you see an instance of bullying. But we have gone too far and it seems like anymore everybody expects to be in everybody else's life.
I'll give you another example: I have diabetes. I frequent a forum for people with diabetes and some of the comments people get are just amazing. It's like when people find out it gives them the right to tell you how to live your life. People have posted times when somebody saw them checking their blood sugar and without even knowing them made comments like "You know, if you would jsut lose the weight you wouldn't be sick" or people trying to police what they eat. Thank God I have yet to be on the receiving end of that, but can you imagine how frustrating that is? It's like people are incapable of staying out of somebody else's life.