hi tonight i let my 2 chinchillas out to play and the younger one about 9 month tends 2 jump around a lot but tonight he tried to jump up to my dressing table and slipped and went down the back of it, he didnt make a noise or anything and i didnt notice anything untill my older one started to make a crying noise and was near some runny brown sticky stuff then i noticed it was from the young ones bum area they are back in the cage and lugsy seems to be trying to clean himself and chico seems to no somat is different, any ideas ? hes been eating, drinking and pooing normal, and normal poo came out of him just seconds after he made this jump. Thanks kay