I bought a box of raisin bran a long time ago, and about two weeks later, I open it up and it was like the entire box was full of fruitflies! They were all over the house. When it got dark, I turned off all the lights except in the kitchen, and the whole swarm of them came in and landed on the ceiling and it was simple to vaccuum them up and then with the vaccuum still running, I took it out on my porch, shut it off and took the bag out. About half of them flew out, but all I cared about was they were out of the house.
At least I didn't have Vinagaroons in my cereal like a few of my neighbors had.. The cereal section at the grocery store across the street was taken over by them.
http://www.scolopendra.co.uk/
Click on the pic of the scorion, then click on "Invert Gallery"
Click on any of the "Tailess whip scorpions" If that came out of my box of cereal, I would totally freak.