The potential for substance abuse involving residual amounts of abusable substances remaining in used skin-worn patches is reduced by the provision of a system and method for combining the abusable substance with a separate anti-abuse substance agent as part of a removal or disposal procedure. More specifically, embodiments of the invention include a technique to perform cyclic redundancy code generation. Then, a pigmented, water-based graining coat water-based graining coat is applied sparingly, preferably by spraying from a small bottle, in an amount sufficient to color at least a majority of texture recesses in the substrate and drying. The present invention also includes a quantizer that receives the discrete cosine transform array and retrieves a quantization coefficient matrix and a model metric.