Yes, dropping a fire extinguisher can be dangerous. Fire extinguishers are pressurized containers that contain a flammable or otherwise hazardous substance. If a fire extinguisher is dropped, it can be damaged, which can cause the contents to leak out and potentially cause harm to people or the environment. Additionally, if a fire extinguisher is dropped from a significant height, it can be damaged to the point where it is no longer functional and will not be able to be used in the event of a fire. To minimize the risk of damage and injury, it is important to handle fire extinguishers with care, and to ensure that they are stored and transported in a secure manner. If a fire extinguisher is dropped, it should be inspected by a qualified technician to determine if it is still safe to use, and to make any necessary repairs.