I had a mattress salesman tell me that I should not buy the expensive well-known mattress because they were "too expensive and over-rated!" I had to report this back to the client.
On a lighter note, when at a different new home shop, the agent closed for the sale. I stated that I was the sort of person who had to sleep on any big decision. He replied, without missing a beat, "The master bedroom is down the hall. Just lock the door and take a nice nap. I will be here when you are ready." The video editor said she near spat her coffee out all over the keyboard when she heard that.