I feel your pain. Two years ago I couldn't keep one out of my jeep. It was doing more then hiding nuts. It was making a home. I cleaned that thing out 4 times and that stupid thing kept moving back in.
I was ready to shoot him, however I'm in city limits. The last time it happened, I was going to go buy a blow gun and take care of it. But apparently, he finally got the message, after we had a shouting match at each other during my lunch hour. No kidding, I was yelling at him in the tree and he was out at the end of the branch chattering back at me. I'm sure the neighbors thought I was nuts...
, on Flickr
You are right too. That little bastard got the last laugh and chewed threw a fuel injector wire and caused a miss on one cylinder. Right at the plug where I couldn't just splice the wire out.