Who said "Those who say they aren't drinking are usually lying."?

This quote is attributed to Tyrion Lannister.

Those who say they aren't drinking are usually lying. - Tyrion Lannister

"Those who say they aren't drinking are usually lying."

Tyrion Lannister Humor

"I am of the night."

"The dwarf lives until we find a way to make him leave."

"I drink and I know things."

"Never forget what you are, for surely the world will not."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."