Sometimes I've found trades suppliers to be condescending. At one place I went to recently, I asked for a trade discount and the guy asked for my trade card. Being a handyman, the state doesn't have a licensing scheme for us, so I don't have a trade card. Being a foreigner to this country, I didn't even know what one was. And the smarmy guy behind the counter wasn't cutting me any slack. I felt like he was telling me I wasn't allowed into his club.