I had recently bought a utility knife and had a chance to use it when we needed to cut some fabric on Friday but Dave stopped me.
Dave: Don't use your knife on that you'll ruin it.
Me: What am I supposed to use it for then?
Dave: You wanna keep it smooth so you can stab someone in a fight. Then whatcha do is you bang the knife on a curb or something and ding it up so forensics won't match. You get away with murder but you gotta make it count.
Me: You've been thinking long and hard about this.
Dave: He he he, yeah. *smiles*
Me: Good to know.