Hi, I bought a sherpa carrier for my puppy to take him with us for Thanksgiving and have been trying to get him used to it at home - he's actually fairly okay with going in it and getting carried about but he wants to chew on the cotton-ball type bedding that's on the bottom - and also on the few metal attachment rings on the sides - I guess I could spray the whole thing with bitter apple - but then he's got to sit in an enclosed area with a nasty smell for a 2 hour train ride...I've tried giving him his own chew toys inside, and he'll play with those, but then also goes back to chewing on the bedding or hooks...is there anything I can do? I can't just substitute out the included bedding for a towel or something because the bottom of it is hard and that's what keeps the shape of the bag intact...help?