The grossest thing that has happened with Nena is the day she pooped hard/watery poop with blood in it! It stank the whole house (we went to the vet etc and everything was good) but a couple of weeks after that she kept passing horrible gas! We had to open all doors and windows and put a fan!
The grossest thing Rufus did was pooped in his crate when he was a pup and stepped on it. Everything in his crate was filthy with poop including him
I had to bath him and wash everything.