What is Herbert’s attitude towards the paw?

Herbert finds the paw to be a bit of a joke. He doesn't take it seriously.

"If the tale about the monkey's paw is not more truthful than those he has been telling us," said Herbert, as the door closed behind their guest, just in time for him to catch the last train, "we sha'nt make much out of it."

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"Likely," said Herbert, with pretended horror. "Why, we're going to be rich, and famous and happy. Wish to be an emperor, father, to begin with; then you can't be henpecked."

He darted round the table, pursued by the maligned Mrs. White armed with an antimacassar.