If you ignore minor chips or cracks in your windshield, they can spread quickly due to temperature changes or pressure

https://wiki-neon.win/index.php/Crisis_Management:_A_Guide_for_Dealing_with_Broken_Windshields_Quickly

If you ignore minor chips or cracks in your windshield, they can spread quickly due to temperature changes or pressure, leading to a full replacement being necessary sooner than expected.