You mentioned before that giving knifes can risk severing connections. Could this effect be used to intentionally weaken a connection to someone? I'm finding my parents to be overbearing and increasingly difficult to relate to, but know that any overt efforts to reduce their involvement in my life will alienate my siblings, who I happen to want to keep in my life. I have the idea of gifting my parents a new set of kitchen knives for Christmas, which would be a nice practical gift they would use, and am wondering if this could be a case of two birds, one stone.