I have a business of sprites who just love to chew.  How do I know what's
safe and not safe for them to have?  I use a bunch of old t-shirts as
bedding for their cage, and at least one of them chews on the t-shirts.
Is this dangerous?  I give them a laxative as a treat and they don't seem
to be exhibiting any problems.
 
Thanks in advance for any help you could offer.
[Posted in FML issue 2875]