"Wait a minute," Malone said. "I think I see a hole in that."
"Really?" Burris said. He frowned slightly.
Malone nodded. "Sure," he said. "If any of the spies drank the water—their judgment would be warped, too, wouldn't it?"
"So they didn't drink the water," Burris said easily.
"How can we be sure?" Malone asked.
Burris shrugged. "Why do we have to be?" he said. "Malone, you've got to stop pressing so hard on this."
"But a man who didn't drink water all day would be a little conspicuous," Malone said. "After a while, anyhow."
Burris sighed. "The man is a janitor, Kenneth," he said. "Do you know what a janitor is?"
"Don't baby me," Malone snapped.
Burris shrugged. "A janitor doesn't work in the office with the men," he said. "He can drink out of a faucet in the broom closet—or wherever the faucets might be. Nobody would notice. Nobody would think it odd."