Batman is 5 months.  We have not worked him in about 10 days, because he was losing

teeth.  When teething just fakes and misses with the sleeve to build drive with him.

He can bite the sleeve full mouth, but he is not big enough to carry without

falling and landing on his head with the sleeve.  We also want to make sure that he is

pain free from teething, before we resume with biting the sleeve.  His bark is very nice.