How to get kicked out of radio shack

Today, I got kicked out of Radio Shack. No I swear... I got kicked out for trying to be a good person and a good computer guy. So here's the story. I was in radio shack today looking for a part for something, when I over hear a women talking to a sales guy about buying a wireless router. I glance over and the guy is trying to sell her a netgear router.
Now... here is the problem with netgear routers... they are terrible! I work on networks all the time and I have never had more problems with a router then with a netgear router. There is actually a policy in my company to not work with those routers because I have so many problems with them. I either ask the person to return it or buy a new one. The reason is that I don't want someone to pay me all this money to set this thing up when a week later something is going to go wrong. So... instead of wasting my time and the customer's money, I simply insist on having the customer use either a D-Link, Linksys, or Belkin router.
Anyways... back to the story. So I am over hearing this guy who obviously knows nothing about what he is talking about and just trying to make a sale. So I step in hand her a card and recommend that she considers going with a Linksys instead of a netgear. Im not trying to make a sale my self or anything like that. I'm just trying to help the women make the better decision. So the sales guy goes off on me telling me how I shouldn't be here trying to take his sale, and messing things up for him. He tells me how I don't know that I'm talking about and netgear is a great product. So I said the only reason that they push the netgear routers is because they are the most over priced so it's a larger sale. He got upset that I said that in front of the customer and told me to leave the store now. I looked at the lady, and said, "Please excuse me, I was only trying to help you make the better decision. I hope that what ever you buy works out for you." and left.
That will be the last time I go to that radio shack! So... I guess you can get kicked out of radioshack for trying to be a good person. Oh Well.