K, this seems like a good place for this story.
About 2 years ago, lunch patrol session at local point, got out of the water to find the tumbler in my lock box had completely disengaged from the lock mechanism, meaning the numbers spun, but it was not unlocking the box.
Fine, I'll go find a stick to pry it open. No luck.
Fine, I'll go ask that maintenance guy to borrow a screwdriver. Now I have a bloody hand (wet, slippery hands + forcing a screwdriver) and still no luck.
Fine, I'll go find a rock and smash the box. It was hanging from the chassis of the car, so any attempt to smash it just bounced it off the metal. No damage at all.
Finally, I carried over a small boulder, placed it under the car, behind the lock box, got a 2 fist sized rock and spent 5 minuted just fcking pounding on the thing.
And that's how I ended up 45 minutes late to work, covered in dirt, in a wetsuit, lying in a parking lot, basically under my car, with blood dripping from both hands (2nd cut from all the rock smashing).
On one hand, I'd buy that box again for durability. But, it stopped working, so, no.