This can be avoided by replacing the wall block after you have finished using your passage, or by crafting a fake wall block as a removable replacement. Even worse, if they see you breaking a wall, then a lockdown will trigger and you will be sent to solitary. (in The Escapists, you'll be sent to Solitary!). If the guards spot a broken wall in The Escapists 2, they will raise the Security Level by 3 stars. Keep in mind that some special walls (ones that are covered in decorations or designs) are indestructible. When the wall is down to low enough durability for your tool to break it, you will be required to have one empty inventory slot to make way for the wall block you will receive. As walls are chipped away, they lose durability.
Walls can be destroyed by using chipping tools (to name a few, crowbar, Lightweight Pickaxe, flimsy shovel, sturdy shovel).
