Why do dogs roll in poo?

An interesting article. Thanks for posting that. I had to laugh at the bit about the fishy smell in the car. I can really identify with that as we return home by car too.

I use only un perfumed shampoo so it isn't that, but the communication reasons sound quite likely.

The only way to stop her would be to not let her off the lead for a run, but she loves it so much, I would rather just put up with the smell on the way home.