Someone woke up on the wrong side of the bed!

We caught Blac Chyna arriving at LAX yesterday, and the reality star was in a foul mood! She covered her face and yelled obscenities at the shutterbugs as she made her way to the car, and they gave it right back to her! One paparazzi even told her to enjoy the cameras and attention while it lasts, because one day nobody's going to care about her. Ouch!

Perhaps her child support battle with ex Rob Kardashian is getting under her skin?

Kimmy K's little bro has asked the courts to reduce his $20K-a-month payments, claiming that he has no real source of income and a lot of debt. He also alleges that the video vixen pulls in way more dough that he does, so she should actually be supporting him!

Want to do gold digging right? Ask Amber Heard for some tips. Want to do it wrong? Look to BC!