Just let them, like someone already said, they can't handle the gearing, plus all the fake gold will weigh them down so they wont be able to make a quick get away. Even if they do, you know you'll be able to find them later that nite in the local park hammered on half a bottle of white lightening cider!! I had a guy from the "travelling community" ask for ago on my bike once, I let him, he made about 4 peddle strokes, tried a wheelie and then nearly stacked it after pulling the front brake to hard on my freshly tuned HS33 Mags!!