Some use their time in the tub purely for pleasure, others to plot. Writer Dalton Trumbo certainly falls into the latter category:
"He worked at night, often in the bathtub, the typewriter in front of him on a tray, a cigarette in his mouth. On his shoulder perched a parrot I had given him, pecking Dalton's ear while Dalton pecked at the keys."
"It is a bronze antique bathtub with a naked 62-year old man lounging with coffee at the ready and cigarette in hand while working on a script. The eccentric Trumbo was known to do his best work writing in the bathtub."