That was it! What a hideous obsession.
Someone actually wrote a hilarious (and safe for work) parody called The Houseplants of Gor.
http://www.rdrop.com/~wyvern/data/houseplants.html
Borin picked up the watering can, and muchly watered the plant. The plant cried out. "No, Master! Do not water me!" The master continued to water the plant. "Please, Master," begged the plant, "do not water me!" The master continued to water the plant. It was plant. It could be watered at will.
The plant sobbed muchly as Borin laid down the watering can. It was not pleased. Too, it was wet. But this did not matter. It was plant.
"You have been well watered," said Borin.
"Yes," said the plant, "I have been well watered." Of course, it could be watered by its master at will.
"I have watered you well," said Borin.
"Yes, master," said the plant. "You have watered your plant well. I am plant, and as such I should be watered by my master."