i love to learn about my cat i love to google “should you trim cat last claw? trim all cat claws? cat last claw called? cat fifth claw? cat claws labelled. trim cat dew claw?” and then say hi graham i learned something about you! your weird claw is called a dew claw and it will not be worn down by regular walking so it is extra important to be diligent about trimming to prevent it growing into your paw pad! and he bites me and bites me