Playing the devil's advocate (and also looking at it from someone who never really got out to a farm until I was in college), I really can understand the inclination folks have to want to tour the farm. I mean, back in the day, if I had been buying animals from you, I would have considered your farm the equivalent to a pet store. You’d never walk into a pet store, stop at the counter, and just have them bring you a puppy/hamster/etc. from the back. You’d want to see how the animal was treated, see the parents (if on site), watch their interactions with their siblings, and pick out the ones you want from the entire bunch. I think the biggest problem is the separation most folks have from farms nowadays. The best thing for it isn’t getting ticked off at these folks, but explaining that biosecurity is a serious concern...and an introduced pathogen can threaten your livelihood. Sorry, but I don’t see the connection between them wanting to see your farm (which IS a business...albeit a home business...providing a product for sale) and asking to tour their home. At the end of the day, they are your client...and just as a car manufacturer isn’t likely to let you on to the assembly floor just because you are planning on buying one of their cars, you have to educate these folks to understand the reasons behind your refusal......IMO... (I'm basing this on my experience the first time I started work at a swine production unit...they put me in the farrowing crates, and I thought it was the most barbaric thing I'd ever seen...until someone took the time to EXPLAIN the reasons behind removing needle teeth, docking tails, etc.)