[thefulminator]

I never rely on scissor chocks to prevent our trailer from rolling. The scissor chocks are more for stability and being able to be locked to prevent theft. I use home made "quickie chocks" to be sure the trailer doesn't roll when parking. I make them to fit within an inch of the actual space so that trailer movement is minimal. They can be thrown down in just a couple seconds and the way they fit they can't flip out of the way if the trailer rolls.