I think I finally understand. For the longest time I thought they had survived their suicide attempt because they cut their arms off. I was reading this article looking for some plan they'd put in motion to kill themselves, thinking they'd had second thoughts and escaped by cutting their arms off.
Now I see that they really are just stupid idiots who don't know how to do themselves in and have only made their lives that much more miserable.
Maybe if they cut each other's heads off instead it would have worked. ;-)