After riding for an hour an a half to see my g/f, the oil cap came off the bike when hitting the off ramp. Luckily only lost a quart of oil before being able to stop at her house. Even luckier still, the cap fell in front of cylinder one and not on the road.
Of course a quart of oil goes a long way when sprayed all over the side of a bike, the left side of your person, saddle bags, windscreen and glasses.
Even after washing it down after a top off and securing the cap, there is still a lot of oil everywhere.