I had a really gross experience two years ago in my marina, July 4th Weekend. People were in our pavilion, located behind my slip, getting ready for cookout, food was on the grills, everyone in a good mood. Well, I had to pump out, what better time to fire up the engines and watch four, hairless, inflated, super super stinky muskrats come out of the port exhaust. Wow, I cleared the dock and pavilion. Since the boat was untied we took off to the pump out dock and notified the harbor master. Poor dock boys had to net them and throw them in a golf cart and bury them in the woods. I guess I killed the critters the weekend before while exercising the engines at the dock. WOW, what a smell.
I will be installing a new product in the next week or two and I will update this thread with the results.