Eh.. i super safe rider ok!! 
except i just buang in April this year.. and
fractured my left leg.
wah.. you were pillon on sports bike ah? CBR?
the rider got bo dai bo ji jam brake or not? keke...
Anyway, according to the riding theory book, *ahem* the pillion is
supposed to stick as close to the rider as possible, until there's
no gap in between. This is so that the rider can have a better
control of where the pillion is. 