I just remembered a story that I first read in George Will's book, Men at Work (excellent read), and got to hear it in person several years later from his rookie ball manager, Tom Trebelhorn.
Treb gave Rickey the green light to steal, whenever he wanted to go. Rickey wanted Treb to give him signs like everyone else got. After trying to talk Rickey out of it, Treb gave him the signs…steal, bunt, hit and run, and the take off sign, to wipe them clean. Rickey gets on base, Treb gives him some signs, playing along, and then takes it off…Rickey steals second. Treb gives another set, takes them off, and Rickey steals third.
After then game, Treb said (loosely quoting), "Why do you want me to give you signs if you ignore them?" Rickey said "What do you mean? You gave me the take off sign, so I took off for second, and took off for third"…csb, he was one of a kind