insomnia strikes and Rats attack

It's 1:34 am and I can't seem to get to sleep -- not that I've tried all that hard. I've spent a pretty productively brutal week working on a big project at work, and my brain is both exhausted and running in circles. Right now I'm sitting in my living room, and watching the damned rat that lives behind our chimney crawl into it's little hole outside the window. I know I should call the exterminator -- damned field rats come in from the field behind our house, and take up residence near our fruit trees. The only real way to get rid of them for good would be to chop down the trees, but I don't really want to do that. So, it's time to call in the pros, I suppose, and have them do the dirty work. I've tried trapping myself, with little success. I hate to kill them, but they are totally in my space and they eat the apples right off the tree, and destroy any garden I try to grow. But alas, I only really think about this task when it's late at night and the little buggers are crawling around.