It's time.....to battle

Liam and Uncle Ii battle it out. Liam uses his "super laser powers" and hits Aaron with a "hi-ya!". He kept asking Papa fpr battle advice, and they came up with this one:

Granpa: Tell him "you're a real nice uncle" then karate chop him in the back
Liam: Um...I'm a real uncle...HI-YA!

Later:
Liam: Well, that didn't work