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Wonder why they can't add these roof-scraping systems that semi trucks use: https://media2.giphy.com/media/Vrg6gYOK0AO6A/giphy.gif https://media2.giphy.com/medi

• mstade 7y ago
  For dry leaves this would be fine I’m sure, but the problem is wet leaves which essentially turn to slime that would just be spread along the track by a system like that. If you’re in a locale where leaves fall in the autumn, next time you’re out on after a rainy day find some half decomposed leaves around a puddle and you’ll see. They break apart into a very slippery goo.