Do you mind if I just rant?

Three questions you should not ask a custom shop owner, especially one who has been in the business for 30 years:
1. Are you sure this is the right price?
2. Can you come down any lower?
3. Can't you get it done any sooner than that?
Just makes me want to say "Ok, I'm flexible. For YOU it's double the price and double the time!" Oi!