If you want to generate some fake data, you can use Faker even outside factories or seeds, in any class.
Keep in mind: to use it in production, you need to move faker from "require-dev" to "require" in composer.json
use Faker; class WhateverController extends Controller{    public function whatever_method()    {        $faker = Faker\Factory::create();        $address = $faker->streetAddress;    }}