Forcing entry with a hoseline
I am looking at a textbook i have and it says the following paragraph.
The value of a charged hose line to force entry or effect ventilation should be remembered. When locked doors are encountered, they can be forced open by putting the nozzle against the door at the level of the lock, straightening the hose line , and pushing it against the door. The damage is not great and the procedure is safe. A straight stream or solid stream at ordinary pressure can break window glass and provide ventilation-a method that is quick and can reach many windows in a short time.
I understand the ventilation part of things but I fail to understand the entry part. Can anyone help me out with this deal?