Inquiring minds want to know

So last week on my way home I walked by a blind woman with a seeing-eye dog. This triggered several questions:

1. When does the seeing-eye dog go to the bathroom? It's not like he can just poop or pee anywhere like other dogs--that runs the risk of the blind lady stepping in it and I think that would be a big no-no.

2. And if allowed to go on the street, is the blind person responsible for picking up after the dog? That seems like a potential disaster. Does the dog help with that?

So then I thought perhaps he was trained to go at specific times. Which generated the next question:

3. How does a blind person tell time? Are the watches for the blind in braille? Audio? Does she just listen to 1010WINS all the time since they tell you what time it is every goddamn minute?

A friend of mine found a site online that sells braille watches. Which leads me to ask, (4) how is a blind person gonna find that thing online? And if so, what kind of computers do blind people use?

So many questions, so few answers. Neither Google nor Wikipedia were much help. What's a Cookie to do?

I was posing all of these questions to another friend last night. He didn't have any answers for me but instead says, "Those questions never would have crossed my mind if I walked by a blind person & seeing-eye dog." He seemed amazed at my thought processes. At least I choose to interpret it that way.

SOOOOO, if anyone has reasonable answers to the above questions, please share.