The document summarizes 10 things that annoy Midwesterners who move to Southern California (SoCal). These include street sign twirlers, the abundance of chain fast food restaurants with long drive-thru waits, ubiquitous helmet laws, inability to turn left at most intersections, contaminated water sources, prevalent cancer warning signs, tattoos, stray grocery carts everywhere but cart returns, traffic stopping for any roadside incident, and communal mailboxes located down the street instead of at the end of driveways.