Saying thank-you never hurt anyone
> Has a customer ever apologised to you? Or offered you a tasty thanks for your services?
Many years ago, on two separate occasions I was called in to deal with "issues" that a distributor had concerning systems they had installed in Westminster.
On both occasions, after a speedy resolution, I received handwritten notes of thanks from the end-user (though nothing from the disti in question). One on House of Commons headed paper, the other from the Lords.
I didn't get lunch, but the prestige within my company got me a very nice pay-rise. A benefit that kept on giving, year after year (and was pensionable!).