If we are in a fight for our life – and these should really be the only fights we engage in – then we should look to take advantage of our environment, the objects in it, along with those things that we have about our person. If we can find or fashion a tool that can be used as a weapon, or take advantage of our surroundings so as to put our assailant(s) at a disadvantage, we should. In a real-life confrontation there is little room for noble ideas and honorable conduct, your job is not to dispense righteous justice against your assailant, but to survive the conflict. If using a weapon increases your chances of doing this, then you should do so, without any question or a second thought.
Improvisation, and the ability to recognize what objects can be used as weapons, is an art. One of the reasons humans are the dominant species on the planet, is because we are able to make and develop tools –it is in our DNA to do this. When we look at how to improvise weapons we are using some of these basic skills, which set us apart from other animals; we have an innate ability to recognize how objects around us can enhance our ability to deal with a problem or situation. When we find ourselves dealing with violence, we should look to employ our most natural skills and abilities, to aid us in our survival; and creating tools is one of these.