There is just nothing like Southern hospitality to ALL, until one of that ALL thinks he can bamboozle a southerner.
At which point a southerner will simply say "Well, bless your heart". rofl, (the north don't know what that really means when they are told that, so shussssssh)
After it is said to you, you will walk away with a smile as well, scratching your head thinking "what just happened". Just wait, it'll dawn on ya. Too late.
LOL I’m not from the south but have a good friend who is an Atlanta southern belle. I know what it means. :-p
I usually use it in another context but I think I should start using it the correct way with the idiots I deal with on a regular basis, living in IL AND working in retail.