my whippet is 12months old i have had her about a week and is a brindle colour she is very fussy but loves beef but not chocolate! She will sometimes play fetch but if she dunna want to she wont move a muscle she is so funny!!!!!!!!!!!!!She also likes to each the chewy shoes and bones from wilkinsons, can you please tell me if she is fully grown now and classed as a adult and is it too late to teacher her basic commands like sit because she wont even sit when i push down her rear end luv whippets.