It seems like the list of things that driver’s need to look out for while traveling on the highway just keeps getting longer and longer. Last month a driver’s windshield was destroyed by mud, and another’s by a flying roof.

But here’s a new one (and something you probably would not have thought possible). Reddit user marek4792 posted the following images after his semi truck’s windshield was shattered by the base of a traffic cone.

Yes, a traffic cone base.

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The view from inside.

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Here’s how it happened according to the driver’s Reddit post.

You’re strolling down WB I80 right by the TA at Ft Bridger, Wyo in a two lane workzone when suddenly a traffic cone base gets launched by a passing truck on the EB side and knocks on your hood before going through your passenger side windshield..

The final resting spot of the base.

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The lesson? You never know what to expect next when you spend a majority of your time on the road. Thankfully, the driver made it out of this one just fine.