Some of them can be really greasy I get the ones from Pets at Home which are not too bad and mad I know but before I give it to Hattie I wipe it with kitchen towel, ashamed to say is's because I am trying to protect my carpets!I gave Polly a pigs ear when she was about 12 weeks and she was sick so I kept off them after that. Presume it was too greasy for her?