What an idiot. So what's the difference between "needs fitting" and "it's about what feels good for you"? And insisting on that you should go ride it first, when you already had test-ridden it, and that's why you were there?

When I meet people like this I try to remember that they probably have a set of general rules they spout to all customers and that usually work reasonably well, partly because they're true, partly because many customers are casual riders who don't really care that much about the final result and won't come back. But they won't start listening to me until they've been through the routine, and I'm still there. Annoying, but then, bike shop employees around here are often just random young dudes who happen to like taking bikes apart, not seasoned salesmen.

Hope you find a better bike shop, or a way to grin through the nonsense!