I remember once, in my garage studio whilst I was animating a dinosaur, that things were not going right. Gradually they got worse and worse, as they do in situations where you don't keep your temper, and in a fit of accumulated rage I threw a hammer at the floor. Unfortunately, it bounced and went through a huge plate glass painting I had been preparing to use in a miniature set and which I had spent weeks carefully painting. I almost cried with frustration, and there and then decided that if I wanted to make this my career, I would have to control my temper. I am not saying that I didn't lose my temper after that incident - I did - but I always tried to remember that plate glass painting. It was a timely and necessary lesson.