Two weeks ago my youngest son had to be hauled out of mass during the Eucharist by his Protestant sister. As she made her way to the door, he shouted, " I'm sorry, Mom!" over and over. Most of us repent when we're about to face the music, and most of that doesn't stick.
Today, my son, without prompting, packed a bag of goodies to keep him happy and busy during Mass. When he forgot it, he was distraught, but decided he could try with just a squishy worm toy. He had a few hiccups, but mostly he did all right. I explained and reminded. He listened and made corrections.
I didn't expect him to have such a big change of heart and a willingness to work at doing it differently. What a great example he's setting for me.