Who said "I'm going to be honest with you, I'm not sure what I'm doing."?

This quote is attributed to Buster Bluth.

I'm going to be honest with you, I'm not sure what I'm doing... - Buster Bluth

"I'm going to be honest with you, I'm not sure what I'm doing."

Buster Bluth Truth

"I'm a monster."

"My mother is dead to me."

"Why won't anyone let me do what I want?"

"I don't understand the question and I won't respond to it."

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."