And that applies to celebrities, too.
Kutcher had a score of 4.79, which wouldve been pretty good… if Kimmel didnt have a 4.8.
Kutcher chalked up his failure to one very specific incident with his father-in-law.

Credit: ABC
I dont know how I got in the house.
I dont know how I got in the car, but apparently I remembered to press the Uber button.
Kutcher, who hasan investment stake in Uber, explained the companys thinking.
Nobodys saying you cant give someone a tip.
Its not that weird sort of exchange moment.
The other thing is for driver safety.
Sometimes having cash on them isnt the safest thing.
Im not saying its wholly unsafe, but it is a designed experience to not have to tip.
Im still gonna tip, Kimmel determined.
Maybe thats why my ratings higher than yours.
Watch the clip below.