There are far too many to quote one! I'm so glad I got to meet Sir Terry Pratchet. I miss him.
He told a story about receiving the Carnegie medal. Apparently the medal is the exact same size as a chocolate coin. You know, one of those wrapped in gold paper. When he received it, he made his little speech, then said, "You know the best thing about the medal? It's edible!" and he proceeded to stuff the chocolate coin that he had swapped for the medal into his mouth and eat it.