I love angry/serious cats

Not like the ones who hate people and hiss and growl at them (I feel bad for them though) but ones who always have an angry side to them (which i realize now is most cats or at least most female cats) the one cat I'm looking after now always attacks my hands really hard but never makes them bleed. her tail is always whipping back and forth in annoyance, and she does this low growl/humming noise all the time (sounds like marge simpson's hmmm noise) and I love her so much even though she is always mad at me (she still lets me hug her and pet her sometimes while angry) Her body is very dense like potato soup or something.