My father, being a doctor in surgery and having seen the results of motorcycles crashes too often, hated bikes. He forbid his kids from riding motorcycles. Hence, my brother really had to work hard to hide the fact he owned one! I borrowed it for a summer. Loved riding it. But in three months, the three times I had to lay the bike down because a car pulled out in front of me, convinced me they just weren't safe - primarily because motorists just don't see them.
My mantra back when I rode was, "Assume everyone is trying to kill you."