mah train tracks

Paul and I had some 1×1 time last night. He’s a talker now. I understand everything perfectly with my mommy-hearing, but for posterity, some translations:
“I did it! Whee! OH NO!”
“My train tracks, back on.”
“NO, GROUND!” Meaning, put it on the ground.
“Help? Me fix? Train tracks. Back on.”

You’ll probably get it from there, but know that hearing a loud engine pass by the house is motivating the second half of our conversation.