But then if the service is not as you wanted it to be, do you first tell them and then lower the tipp, or do you just lower the tipp? Even if something was bad,

But then if the service is not as you wanted it to be, do you first tell them and then lower the tipp, or do you just lower the tipp? Even if something was bad, I'd just want to get out there, having to create another awkward situation is the last thing I would search for.