I was straightening things up in yard last Saturday and it occurred to me that I had not fired up Summer School for a while. It's bad for boats to sit (real boats with motors) so I hooked up the hose thingie to the water intake thingie on the motor, turned on the hose, and turned the ignition key.
Click. Vrrrt. Click.
Nothing. I wasn't that surprised. Few things are more maddening than marine electronics. Maybe the terminals needed cleaning. A little corrosion buildup on a terminal is a common cause of 'nonstarts" in boats and my open, wet Carolina Skiff is a tough place to be if you are an electrical connection.
So I popped the top off the battery cover and found this mud dauber nest perfectly formed around the positive terminal on the battery.