It's good to give any sort of thing you're going to climb at the burn a bit of a once over and think about failure modes and worst cases before going on.

In 2018 there was a tower of cars on a spike. [1][2]

One of the cars bent in half (turns out cars aren't design to be supported by a stake in the middle but instead on their two axles. Who would have guessed).

Climbing was closed for the rest of the week.

In 2016 there was a giant boar you could climb on that swiveled at the base and head. There were rumors going around of severed fingers. Surprisingly (or not) it was welded stationary mid-week. [3][4]

[1] https://www.rgj.com/story/life/arts/burning-man/2018/08/29/b...

[2] https://www.reddit.com/r/BurningMan/comments/9crpce/night_at...

[3] https://www.reddit.com/r/BurningMan/comments/51d1t5/comment/...

[4] https://www.youtube.com/watch?v=q4l-eAJT1Cg