The Pooka can only be seen and heard by its owner.
Daughter: "Mommy can I go to my friend Jean's house?"
Mother: "No no honey, we don't associate with Pookas because we want you to grow up to be successful."
"A Pooka? Is that something new?
"No no, as I understand it that's something very old"
"As side from Tim Burton and Sarah Palin, pookas are probably the most destructive force in American society."
Ian: "Whoa dude why did you just kick that guy?!"
Thomas: "Its ok, it was just a pooka. They don't have feelings."
"There are indeed too many damn pookas on this damn beach"