Ramses: <sharpens claws on carpet>
Carl: "That's not your scratching post!" <scritches fingernails on giant kitty-condo>
Ramses: <runs behind kitty condo and sharpens claws on carpet>
Carl: "No! *This* is your scratching post!" <puts Ramses on condo platform>
Ramses: <reaches past sisal column, sharpens claws on fabric back of adjacent office chair>
Cats, man.