I have had several cats through the years - I currently have 3 of them. All have been declawed. Within a day after the procedure to have them declawed, all were back to normal. None suffered any behavioral changes for the worse. If anything, two of them became less aggressive (and quite affectionate) when they realized they could no longer exact damage with their claws. Declawing may not be for everyone, but the choice to do so should remain available.