Doubt there's an answer for this but I really hope so.
Basically, I've always thought it strange (but convenient) how when a dog sits on a carpet or furniture or something, he doesn't leave any fecal remnants.
However, today my dog sat in the passenger seat, and for whatever reason left some slight (very slight, only noticeable if you were looking) smears on the seat.
I love it when my dog jumps up onto my bed and paws me awake (he doesn't run riot around the house, but he his allowed to do this) but now I'm just really paranoid he's going to leave fecal marks behind.
Like I say, I doubt there's an answer other than keeping him completely off the furniture, but is there a way, diet wise or whatever to ensure he's clean? I mean, cats never seem to have this problem. He's a Border Collie, so he can be trained.
I guess this is why pets aren't often allowed on the furniture...