Have a 2 yr. old german shepard. All shots,fixed. Fenced yard,daily walks,indoors 75% of the time. Played with,generally well behaved,listens to commands. But... He loves to lick the carpet,not just a few swipes,but he will lay in one spot for 1/2 hour and get it soaking wet!!!He has a well balanced diet,big bones and favorite toys,occasional table scarps(O.K.,daily treats ) Not really a big issue,feels odd stepping in a spot barefoot at 4 a.m. going to the bathroom. Any thoughts?