This morning Jack and I were eating breakfast, when all of the sudden he said, "Mama! Potty! Pooop!" (in a very urgent voice). I quickly grabbed him out of his booster, pulled off his pants and diaper, and threw him on the toilet. To my amazement he pooped on the potty!
I still don't think we're ready for real "potty training", but if he keeps this up it will be a breeze (hopefully I'm not speaking too soon)!