The whole laser cutter itself got a thorough cleaning.
During this we found evidence of PVC cutting and an unreported fire.
Please please please tell us if you have a fire in the laser cutter, we won't be mad ever, we just want to know so we can come in and fix any damage.
Again, you will not be told off/berated/punished, we know fires happen and its usually no ones fault, it's just a byproduct of how the laser cutter works.