I'm very very excited that I have made contact with another goat owner in this area, and I'm hoping that they are willing to do some goat sitting for us when we need to be out of town. That being said, how worried should I be about biosecurity? I run a clean, closed herd, and hopefully she does the same. But... should I ask? It's not like our goats will be in direct contact. Do I need to worry about diseases getting tracked in on the soles of shoes and such?