After just one day of preschool, my 3 year old is being impossible. Surely he couldn't have learned…

After just one day of preschool, my 3 year old is being impossible. Surely he couldn't have learned all this behavior from ONE DAY?

On a side note, we did take him out of the "preschool" he was going to because there was zero structure going on in that place. So he's starting a new place Monday that has actual teachers with degrees in teaching!