Hubby just sold his R6...says it's too uncomfortable. He has a Warrior also (power cruiser) and hopes to eventually get a Versys. Until then, he asked if he can borrow my bike occasionally for some fun which is fine with me.
I'm not saying I would never let anyone ride my bike. I would just be very picky if the situation ever arised...such as trust, reason, and amount of $ they have to fix it if something does happen.
If I don't trust the person then I just use the excuse of only having liability! Of course that may be changing soon. The insurance company quoted me around $800 back in March but I'm thinking he may have messed up and quoted me the R6 instead.