Article continues below advertisementPrince Harry and Meghan Markle are about to embark on a four-day trip to Australia - something that likely isn't sitting well with the royal family.The last time the Sussexes went Down Under in 2018, they caused a flurry of headlines due to rumors the former actress mistreated her staff. Though the couple is no longer part of the monarchy, there's a good chance they could still stir up drama for the royals since they may use their titles.