Paper or Plastic?

I thought I avoided most of the pitfalls normally encountered by rookie parents at the grocery store. She was well-rested and fed. My grocery list was limited to ten items all organized by department. I had an inkling as we whisked through produce that a storm was a brewin. The dairy aisle is where we stared melt down right in the eye. The low point was a time out by Purina. Oh, the indignities!
*Heartfelt thanks to that woman offering me her unsolicited opinion/parenting advice over the loud screams in aisle four...really...go jump.