Having watched The Avengers more times than I would care to admit on a public blog, I am convinced that Thor never read the safety warnings that come printed on Mjolnir, his hammer of power.
For those struggling to read the safety warning, it is as follows.
CAUTION:
- Do not hit or swing at people or animals.
- Use away from breakable objects.
- TO AVOID INJURY: Discontinue use if core is exposed.