The people I associate with are all long time motorcyclists, and the subject of loaning bikes very seldom comes up unless someone is interested in acquiring a similar one. I'd let any one of them ride the Kawasaki, but the Ducati's another story. It's way too easy to get in serious trouble with it, and I've got a lot of money invested in it. I can only think of two that I'd trust. One's an old riding partner who also owns Ducatis, and the other has been road racing for 40 years. Still has his old TD1C.
15 BMW RnineT
10 Ducati 1098 Streetfighter S - "Sleipnir"
09 Kaw Versys
67 Triumph Bonneville TT Special