With brothers you become friends. Some you hang out with more than others. You talk to one about the other a little more. You get mad at them. Then, you love them. Then, you apologize. You have to apologize whether you want to or not. You have to. That's your brother.
Be it whim or emergency, the modern laboratory is equally at the service of romance, equally ready to gratify mankind with a torpedo or a toy.
Whether you're a mechanic or you build houses or you work in an office, you don't have to like your boss.