Ant Man by Anthony Tan
We could also imagine shrinking being really useful with kids, in more way than one. Sure it'd make for some great games of hide-and-seek, but also imagine how useful it could be when they start getting older and hitting those pesky teenage years. They'd never feel safe trying to get away with anything because they'd never know if you're out running errands or hiding in a coffee mug waiting for them to make their move. Sure they might grow up anxious and paranoid, but surely that's a small price to pay for good behavior.