What is a crash?

[ChampaignBlue]

My pre-game always includes a reminder that all hitting needs to be below the belt, if I get torso to torso there's a judgement call coming and as a rule the runner isn't going to like it (exceptions are the sudden moves by the defense or a stuck cleat). What is important is that you also be consistent in protecting a runner that does go around to avoid a collision so that they never get it in their heads that they should have knocked her block off because the blue didn't protect the runner.