@ nuyasha: thank you also. yea, of the "rub" it's almost all fallen away now. nothing worst than a fall or hitting shins on bulkheads/kneeknockers on ships
i think a tendon got bruised on right knee (the only leg that was injured and shows the signs) but it's healing quite nicely. i' ve noticed so many brand-new scooters in SF where gas is often highest in the NATION/CA, and it's good to see people are turning to alternative means of transportation. thanks again!