One of the joys of parenting is seeing your child happy. Seeing them sit still for 40 whole minutes is the other joy. Before having children, I might have hesitated at the prospect of the GrandWest Grand Arena packed with 1000s of hyped-up kids between the ages of three and eight but now, as a mom to one hilarious, busy, and omfg-stubborn four-year-old, nothing scares me anymore…