Who said "I want you to know that I'm very grateful."?

This quote is attributed to Buster Bluth.

I want you to know that I'm very grateful. - Buster Bluth

"I want you to know that I'm very grateful."

Buster Bluth Gratitude

"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."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"