Yeh but most sport bikes are very finicky with the throttle. When you are just getting used to it, a slip of the wrist is all it takes and you can end up with the bike on top of you. I'm still getting used to my 250 and learning different techniques everytime I get on it. You just need a lot of patience and time to ride. Unfortunately I barely ride it anymore but I'm keeping it for when I do get free.
My mother has been trying to get me to sell it all summer when I finally bought it in June and had it running. Oh and I'm not a kid I'm 25 lol all she would talk about were accidents she saw or heard of. But rheres risk with everything you do in life.
that almost happened to me twice when I
a). went over my first large speed bump, the slight twist of hand on the throttle caused the bike to jump forward a bit, that was startling and
b). when I tried to do a rolling burnout the rear tire broke loose and slid to the left, meanwhile I stopped the clutch slipping and throttle gassing but the bike was moving forward a bit faster than I would have liked and I gripped onto the throttle trying to pull myself forward which caused a moment about the thottle causing the bike to accelerate a bit more making it worse, etc.
I would still recommend getting a decent sized bike though instead of 250cc for starter as I would have outgrown that in 1 week. I think one of the first things I would recommend doing though is hitting the speed bump. They don't teach you that in the motorcycle course and graduating from a 250cc to 600cc to 1000cc the same thing could still happen to you. However, like always, I would only recommend the 600cc+ bike if you are the "athletic" type with good build, balance, hand/foot-eye coordination, and a certain "cleverness" or "whit". IE if you are capable of learning to clutch and ride the bike without killing the engine more than 3x then you will be fine a 600cc+ bike. If, however, you're clumsy and are the type that isn't able to pick up a new sport easily and be decent at it immediately then I would recommend starting with the 250cc bike.
As for b, if the foot pegs were more a pod you slipped your foot into like what bikers use on their pedals, then I would have been able to lean back forward using my torso.
TBH nothing could have prepared me for B happening except for thinking of what I needed to do while it happened instead of freezing and not thinking. If I had been focused and hadn't freaked I would have figured it out.