Pinske had this habit of telling Frank all the things you could do. That's cool, but I hadn't played trumpet in quite a while, and when Frank found out that I played, he asked how long it would take to get my lip in shape I told him a couple of months minimum, and he said, Good, you've got three weeks. Bob Harris, 19 December 2000
The complete interview with Bob can be found in Andrew's book Frank Talk: The Inside Stories Of Zappa's Other People (Wymer UK, 2017).
Photo of Bob, with wife Thana, taken backstage at Zappanale #13 by The Idiot Bastard.