As a parent who watches the show with my kids, I think Humdinger's shenanigans are a big part of why kids love the show. He provides a lot of the comedic relief and learning moments without things getting too scary or serious for the little ones.

lol, I know what you mean, my kids got me hooked too. We're Team Marshall in this house. My little ones go nuts with his fire truck turns into a ladder, so many laughs haha 🚒