Clark-Trimble was not primarily a physicist, and his great discovery of the Graduated Hostility of Things was made almost accidentally. During some research into the relation between periods of the day and human bad temper, Clark-Trimble, a leading Cambridge psychologist, came to the conclusion that low human dynamics in the early morning could not sufficiently explain the apparent hostility of Things at the breakfast table - the way honey gets between the fingers, the unfoldability of newspapers, etc. In the experiments which finally confirmed him in this view, and which he demonstrated before the Royal Society in London, Clark-Trimble arranged four hundred pieces of carpet in ascending degrees of quality, from coarse matting to priceless Chinese silk. Pieces of toast and marmalade, graded, weighed and measured, were then dropped on each piece of carpet, and the marmalade-downwards incidence was statistically analyzed. The toast fell right-side-up every time on the cheap carpet, except when the cheap carpet was screened from the rest (in which case the toast didn't know that Clark-Trimble had other and better carpets), and it fell marmalade-downwards every time on the Chinese silk. Most remarkable of all, the marmalade-downwards incidence for the intermediate grades was found to vary exactly with the quality of carpet. The success of these experiments naturally switched Clark- Trimble's attention to further research on resistentia, a fact which was directly responsible for the tragic and sudden end to his career when he trod on a garden rake at the Cambridge School of Agronomy. (Jennings 1960, p. 396)