How much time had you been instructed in the safe use of one before running out and purchasing one? Do you live under their roof? Those would be the first two questions I ask. I was brought up in a family where everyone rode motorcycles as far back as my great grandfather. So I had been out on one with my dad, and thoroughly taught to respect them or they would kill you. The two things my father would repeat to this day if he were still alive are:
if you do not respect a motorcycle it will kill you
motorcycles have every advantage over cars up until point of impact
the bottom line is don't give your dad a chance for an I told you so. respect the bike, don't be out hot dogging, and make sure you pat attention to people in cages because they do not pay attention to you.