Memories...
A million years ago my stepdad and I built a wooden-chassised coaster to run down the windy dead-end street in front of their place in our local SoCal mountains. The steering was via a rope wound around a steering shaft that moved the pivoting front axle from input from the steering wheel. Unfortunately, we wound the rope the wrong way around the shaft so when you steered left the axle actually pivoted to move the coaster to the right.
We were anxious to see how it ran so as soon as it was finished we pulled it to the top of the road and my stepdad made the first run. There were only three homes on our street and the other two were empty that weekend so we had the road to ourselves.
The initial run started easily enough since it was gravity-acceleration and fairly straight at the beginning. However, there were a couple of turns after you got going fairly well. As you headed down the road there was a hill to your right and a dropoff to your left and large pine trees through the woods. Evidently, my stepdad forgot about the reverse-steering and as he got closer to the left edge of the road he kept steering to the right, then panicked and steered sharply to the right. Yeah, that "right" turn caused him to actually go sharply left...and a sudden stop as he ran straight into a big ol' pine tree.
He only got bruised a bit.
We hauled the coaster back home and rewound the steering rope correctly.
We had a lot of weekend fun with that coaster and you sure got your exercise pulling that thing up to the top of road before every run.