My best one was many years ago I was going to visit a mate of mine on my 68 T120 when the lights failed at Upton upon severn, some 20 or so miles from my destination and some 60 miles from home.
Given that it was a nice full moon lit summer evening I thought I would carefully press on as I could see where I was going, and I put my foot on the rear brake when any cars came up behind.
All well and good for a few miles when I passed a cop car in a layby.
Next thing I know I was pulled over and asked why the lack of lights.
I explained my predicament and the fact that I was using the rear brake light.
Cop was very interested in the bike, so we talked bikes for a while. He then asked what I was going to do, so I said pull in at the garage just up the road and find someplace to stay for the night.
"Right answer" said the cop, but he also said that a few miles up the road one of his colleagues was in a patrol car in a layby and if I did decide to ride on he may not be so leanient, with that the that the cop left me in peace after giving me a stiff telling off.
I rode to the garage and after much cursing and fiddling foound out that if I pulled the headlamp out of the shell the lights would work, so I rigged up a bungee to hold the lamp so that lights worked and I had a "beam" that projected onto the road a few feet in front, and went on my way.
What was just up the road? - a cop in a layby.
I gingerly rode past, expecting to get pulled over but no, cop stayed where he was.
Talk about relieved when I got to my destination.