That picture reminds me of when I had to treat my little Nicky for a dog bite when she was only 2 weeks old. She was too little to pry open her mouth to give her antibiotic, so I would hold her on her back and shake her gently until she meowed. Then I would give her the antibiotic while her mouth was open.
I thought that treatment at such a tender age would make her vicious. I was wrong. She's a 15 pound (not fat!) sweetheart.