Let’s face it, people complain and as journalists, we love when they leave a public paper trail. Potholes. Bad manicures. Chain letters. Exploding toasters. Error-riddled credit reports. People complain about virtually everything. We’ll discuss stories we’ve done with complaint data and how to avoid potential landmines. We’ll show some cool data visualizations, tell you how we used complaints to investigate common nuisances and shadowy corporations, and hopefully inspire you to dig into the whiners and complainers in your neck of the woods.