Snakes. They hide away in small nooks and crannies and come out only to get just enough sun to barely move around. Then they sit in one spot for hours on end waiting for their lunch to come. You might be familiar with this kind of behavior from your teenager during the summer. If you accidentally stepped on your teenager while they were laying out by your pool, a bite from them would be a mild reaction compared to the emotional turmoil they will probably deliver.