Leave the equipment to people who are trained to use it.
 Article 4.08, 12.04, 12.05
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Don't hold the train doors. It slows down the whole train, and if the doors jam the entire system could be shut down.
 Article 4.14
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Don't bring anything dangerous into the metro.
 Article 4.10 and 4.16
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Don't make a nuisance of yourself. Keep your voice down, use headphones for your music, and keep your hands to yourself.
 Article 4.11, 4.20, 4.21, 4.22, and 4.23
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You are welcome to bring your sporting goods (skis, sleds, and bicycles) on board, outside of rush hour. 
 Article 4.12, 14
 
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 The trains move very fast. Don't put yourself or any of your parts in their way.
 Article 4.13, 4.15, 12.01, and 12.02
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 You get in the metro to ride the metro - not your bike, roller skates, or skateboard.
 Article 4.17, 14.06
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 Soliciting a donation, witnessing, pamphleting, canvassing, and begging are permitted under certain restrictions.
 Article 4.18, 4.19, 5, and 6
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 Guide dogs helping the disabled are welcome in the metro, and so are pets carried in a cage. All other animals are prohibited.
 Article 7
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 The metro isn't expensive, but it isn't free.
 Article 8, 10, and 11
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