I had the oil changed last week in anticipation of putting the bike away for the winter. I took it out for a ride the next day and after I returned to my home, and several hours had passed, noticed a small amount of oil under the engine on the garage floor. It made me worry that the mechanic didn't do the job right, but with my knees it is just too hard to get down and look at the underside of the bike. I cleaned up the spot of oil today, took the bike for a short ride (about 8 miles) and then parked it again in the garage. This time, no oil spot on the ground. Could it be that they just added a tad too much oil and it overflowed or something but now is not an issue, or should I be taking the bike back to the dealer mechanic?