I think he udal means that if we behave at religious places or for that matter any public places, there wud be no stampede. very simply put, people forget that they are in front of god to bow down and seek blessings and forgiveness. They tend to show that I am more powerful so i will stand in front of the queue. I have seen this happening in front of eyes. But alas I am only a person. Such things can be changed by the thought process not by people alone. And thought process changes with proper education n values from family.