I made an offer just a little under the asking price on a scoped rifle once, like $20 less than asking price, and the guy was so insulted he grabbed it off the shelf and was headed to the back room with it. Whoa whoa whoa, that's fine, I'll pay that!
LoL!!! He's in the wrong business if he gets triggered like a small child over somebody making an offer less than the hang-tag price.