While handling a Sig P229 at the last shop I was in, a local mom & pop:
Owner: "Chris, you really don't want that"
Me: "Huh? Why not?"
Owner: "The .40 S&W has a very nasty recoil impulse and even you won't be able to control it after the first shot" {After 15K through my M&P .40 alone, nevermind the Taurus and Beretta}
Me: "Thanks. I didn't know that...I was completely unaware." I then proceeded to put the pistol down on the counter rug with the slide open and wishing him a good day on the way out.
This is why I internet shop and pick it up at a dealer by my work. No BS, show them my CCW, sign off, walk out.