He ORDERED you?! 
I find that difficult to believe as a dealer who is so compassionate about the 2A that he forgets the 1st. 
Besides on what authority can anyone ORDER anyone not to talk to someone else besides a kindergarten school teacher? I remember being in time-out.
I was standing at the counter in the process of paying for something IIRC. A male was standing next to me with about 4 Japanese WW2 rifles he appeared to be selling to Daniel. I looked over and made small talk with the man, asked him what they were. He answered and then I said something to the effect of "oh cool, how much are they worth" I might have said how much they sell for but you get the idea.
Daniel immediately looked up at me, clearly irritated, and told me, in a stern voice, not to talk to him. He then looked over at the male with the rifles and said told him something to the effect of "you are here to do business with me, don't talk to him". I took my purchase, left the store without saying anything, and decided never to go back.
I get the feeling Daniel thought I was going to try and jump in on some purchase he wanted to make. I was just admiring historical rifles, making small talk, and I was not happy to be treated this way.
Daniel could have politely informed me that he was purchasing the rifles from the customer and might he still have me as a customer. Not likely due to the way he had treated my friend earlier when we went there once but this incident cemented my dislike for his service.
Sure, it is his store and he has every freedom to run his business the way he wants but I am exercising my freedom to not shop from him and share how badly he treats some of his customers.