I only met BJ once.
I'd booked the Chipmunk to take her down to White Waltham for a fly-in and had just finished all the planning - including lots of alternate routes around zones because the radio was dicky. That left me behind schedule so I was a little impatient to get off, and wasn't happy when someone walked in and started firing questions at me. My replies were curt - borderline civility but not quite rude - but the lass in the office looked like she was going to have a heart attack.
BJ was unruffled by my poor manners, paused a second and said, "You should have asked me about this as I would have let you take the Tiger Moth." Only then did I know who it was and I locked up completely - which he intrepreted as disappointment at not getting the Tiger (which was also true). I mumbled something and made a fast exit..
I remember the cheque instruction..