Yes, it's sometimes necessary, but that doesn't mean it's not hilarious. Someone needs to unknot their panties. :P

My parents have had to give their cat Murphy the lion cut a few times because of clumps. The regrown fur has a slightly different texture and after the second time, hasn't clumped again. Everyone wins! (As long as the scratchies are plentiful.)

Please note he looks like a spaz in the first link because he coming out from under heavy drugs due to also having had a rotten tooth pulled.