[As soon as Jason feels the tug from the Lasso of Truth, he realizes the fun has stopped. He’s still scowling but now resembles more like a child, which unintentionally adds further credence to Dian’s comment about the Jasons doing a schoolyard fight]

It was supposed to be play fighting.

[And now with the lasso on him, Jason knows he can’t bullshit or be much of a smartass]