[numpad0]

Is this common behavior with other addictive substances? e.g. mixing bitterants trying to weaken own addiction?

wait a minute, from behavioral science perspectives, does it work as intended, or does it work against the aim?

[halgir]

Apropos mixing bitterants, it's quite common to apply a bitter nail varnish to help people stop biting their nails. Not an addictive substance, but an addictive behavior.