return get_mons_resists(mon).acid;

    return (get_mons_resists(mon).acid);

            // Check if this is a resist that pretends to be boolean for damage
            // purposes.  Only electricity and sticky flame (napalm) do this at
            // the moment; raw poison damage uses the normal formula.

            // Check if this is a resist that pretends to be boolean for
            // damage purposes.  Only electricity, miasma and sticky
            // flame (napalm) do this at the moment; raw poison damage
            // uses the normal formula.

            // Use a new formula for players, but keep the old, more effective
            // for monsters.

            // Use a new formula for players, but keep the old, more
            // effective one for monsters.