Think about the situation.

When we (Canada) have a muscular, hyper-assertive and angry attack dog as the new government of our southern neighbour, destined to target a trade agreement and our industries in a manner akin to a truck wanting to run over a squirrel...

... what would be the most naive and infantile move that could be made by our Prime Minister in the preceding weeks?

Answer: He could rush like a smitten teenager, wave his white handkerchief off the balcony, and say: "Hoo, hoo, hello Mister President Elect, Ottawa will be most happy to address the trade agreement and renegotiate our industrial arrangements with you, we want you to be happy in knowing that we are on your side in wanting to to enable you to trash our interests here, look at me, I am on my back with all four limbs up and flailing, you great big attack dog, you". 

Justin Trudeau. He's just not ready.