Be advised , if the driver does not get the tip he thinks that he deserves (plus delivery ' fee ' ) , he will throw a fit in the hallway of your building. If you call to complain about it you will be told what the average tip is for your building and how you are ' too cheap'. Also if you put your tip on a credit card via their on line ordering and not on the slip in front of the driver , the drivers don't understand that and think you are giving them nothing, and pitch an even bigger fit. Dinner and a show!
Thankfully the security guard in my building put a stop to it.
So you tell me folks, is expecting a $10 tip on a $20 food order ( including $2 ' delivery fee ' ) the norm? 50%?