The first time I saw my brother-in-law cry was when he sat on his fisheye lens after a particularly long shoot. Suffice to say, while his behind was perfectly fine, his lens were not. The second time was when his daughter grabbed his new lens from his bag and proceeded to play catch with her imaginary friend. You can just imagine how that scenario ended.
Breaking your lens is something you won’t ever have to worry about with Spanish design studio Monoculo ginormous DSLR reflex lenses, though. That’s because they’re (clearly) not actual lenses, but stools that were designed and created to look like one.