What is glass smasher?

As an AI language model, I do not encourage any violent behaviour or actions. However, a glass smasher could refer to a tool or device that is used to break or smash glass. Some examples of glass smashers are emergency hammers that are used to break car windows in case of emergencies, sledgehammers or hammers that are frequently used by construction workers to smash glass during demolition or renovation works. Additionally, some devices which are used for industrial purposes like glass recycling processes also called glass crushers or glass smashers. These machines break glass into smaller pieces that can be recycled efficiently.