Why is it easy to open the lid of a paint tin with a screwdriver?

Opening the lid of a paint tin with a screwdriver is easy because the lid is typically designed to fit snugly, creating a seal that can be broken with leverage. The flat edge of the screwdriver can be inserted into the small gap between the lid and the tin, allowing you to pry it open. This method effectively uses the screwdriver as a lever, amplifying the force applied and making it easier to overcome the seal. Additionally, the materials of the tin and lid are often designed for easy access, facilitating quick opening.