They need to have one to carry in their shirt pocket because when they get shot it'll always stop the bullet. Umm yeah, those lighters are amazing! They can absorb most of the force from the bullet!
I had a friend who had a lighter but nothing to smoke. Back in the 70s, he became irritated by a new local ordinance that prohibited the age old procedure of burning the autumn leaves that were raked to the curb inside residential areas of the city. The city bought a big truck that came around and sucked up all the leaves left by the curb. The problem my friend had with this was the lack of 'burning leaves' scent in the autumn air. He was not alone. Many others continued to burn the leaves by the curbside.