Mine never have either so far (knock on wood). Occasionally they have some pretty runny poo too but somehow manage to stay clean.
Pretty funny though. I can actually picture the downy poo feathers blowing in your face. That's something that would happen to me and my husband for sure. This weekend i had lots of poo on the bottom of my shoes after cleaning out the run. I decided to clean them off with the hose and when the water began to spray, it came out really hard, bounced off my shoes and splashed poo water into my face. And yes, i think some went on my mouth