I agree with catlady711. I use a squirt bottle most of the time. I also use the grab methode. Our youngest LUCY is at the stage that he likes to bite. When he goes to bite I let he grab my thumb, nail up, then gently grab his lower jaw. I hold for just a few secounds and he gets the idea that this is not a good thing, too be trapped. All of our young ones went through this and none bite.