No bugs, but every Spring birds try to make nests in the covered engine well of my F-27. Last year I covered the well opening around the outboard lower unit to keep them out - they pecked through the plastic and made a nest anyway... At the end of the season I went to wipe off what looked like a small chunk of tree stuff and saw instead that an owl had horked up an owl pellet on my deck - nice little tight package of bones, feathers and fur from its previous lunch and dinner of varmints. Various species of Vultures pick apart life vests and foot straps and poop on lots of stuff at our club field. They seemed to have moved on a bit in the last years, but they still make their mark.