Occasional trimming recommended
Just a bit of advice for you new MC owners...we have found that it generally is a good idea to do an occasional bit of trimming of the adults "backsides" if you want to prevent poop in the hair problems. MCs can get quite a bit of hair back there, and even if their poops are quite firm they may get so a piece can get a bit hung up when going. Having some poo dangling back there typically upsets them, so they rub their bottoms--making it totally hopeless to remove without scissors (plus leaving you with some carpet cleaning too). Doing just a slight bit of trimming every month or two can definitely help with this. (They are definitely not low maintenance pets!)