I have been extra diligent since Tumbles arrived to put the unused pieces of floss in the jar where Tumble can't get to them. However, last night, I had just snipped a piece off and put it on the table when the ceiling fan blew it off and onto the floor. Mr. Tumbles snatched it up faster than anything and ran off with it. I wasn't able to catch him and I haven't seen the piece laying on the floor anywhere, so I'm assuming it went down the hatch. Other than watching the poop, what else should I be looking for to indicate there's a problem?