I ever so stupidly thought that I could trim a Shih Tzu's nails on my own, but I was wrong! After I trimmed one nail, he started chewing on my hand that could've easily been a serious bite. A mistake like that will get me fired instantly. I don't know why I thought I could do it on my own. I knew better than that! Also, I thought my animal restraint technique was on point, but it's been rusty the past couple days! What is wrong with me?