I heard once (did not see this) that some first time driver (of some weird buggy design - not a bike - but had big wheels) jumped the curb at Hill 2 and almost ended up in the pond. That would have been cute - The Tartan: "Buggy Driver Drowns".
Observation: If that happened, I suppose the Rules would need to be changed to require drivers wear life jackets - now that would increase the frontal area.
You younger buggy nerds may not know this, but when I was at CMU (early '70's), DTD was doing push practice one night. Harnesses were not required the by the Rules then (I don't think - but many buggies had them), but at least were not in use*. The driver was not wearing a harness, and somehow the buggy got loose and rolled head-on into something hard (a car or wall?) - the brakes didn't work?. The driver (a guy in those days) got really screwed up - back injuries - and I think ended up in a wheelchair. This created a real stir within the Sweepstakes and the University, and resulted in some of the major safety changes to the rules that exist now - like harnesses, etc. For instance, they used to allow 'Rocky the Squirrel' type WWI leather caps as 'helmets', but obviously now something more substantial is required. I shudder to think of what would happen to the Buggy Races now if someone go maimed.
Comment: Although the buggies of yesteryear were much heavier, my impression is that today's buggies are safer, mostly due to being stronger (advanced materials) and lighter (less total mass). When they hit something, they seem to tend to bounce off and decelerate rapidly.
* An aside. SAE (where I was at CMU), raced 'bikes' (2 wheelers). How would you put a harness on a bike? Would you even want to?
* "I love the smell of solvents at Free Roll. It smells like......victory".
* "I'm loosing my mind, but I don't seem to miss it much."