public function checkMaxCall()
    {
        if ($this->krexxCount >= $this->maxCall) {
            // Called too often, we might get into trouble here!
            return true;
        }

        // Give feedback if this is our last call.
        if ($this->krexxCount === ($this->maxCall - 1)) {
            $this->pool->messages->addMessage('maxCallReached');
        }

        // Count goes up.
        ++$this->krexxCount;
        // Tell them that we are still good.
        return false;
    }