Anonymous wrote:+1
I would be fine with my neighbor asking for a favor. I would say no, if it didn't work for me, and just be honest about why and what might work for me. I would try to make it work the first time, since I do want to keep good relations with the neighbor. I don't understand why so many PPs are so negative about the neighbors intentions - maybe she genuinely thinks that it would be a mutually beneficial arrangement.
I think some people just go through life assuming that everyone is trying to take advantage of them, and that's the lens through which they see everything. It seems pretty sad to me. If you don't want to or can't help, just say no. Some people might think that trading a couple hours of babysitting in the morning for a couple of hours some other time to be able to run errands without kids is a fair deal. OP doesn't. So just say it won't work for you.