I have wanted to cut off a finger before, but these urges are certainly not normal and probably caused by how fucked up one has to be to be part of modernity.

There could be any number of reasons you want to do this. Usually the desire to destroy something valuable stems from the need to release aggression or test boundaries, which is totally normal, esp...

I believe that you feel like you want to eat it, but you are just confusing the idea of eating with the idea of showing affection. It is normal to bite your pets ears/neck to show them affection/...