Windshields are designed to be strong but not indestructible; avoid putting undue pressure on them by leaning against

https://wiki-square.win/index.php/The_Link_Between_Pitted_Windshields_and_Driving_Visibility

Windshields are designed to be strong but not indestructible; avoid putting undue pressure on them by leaning against them when entering or exiting the vehicle to prevent cracks.