When we go to a group at the moment my toddler knows the format and when it’s the ending song or rhyme gets up and walks/runs out.
I do bring him back and make him say good bye and thank you but he then as soon as we’ve said it he runs off again. It’s rubbish as it means I’m charging after him (also have a baby) and I know this is selfish but means I don’t get ten minutes to sit and chat with other mums, I’m not sure it anyone can relate?!