Marines must request paternity leave within 25 days after the birth of the baby. If deployed, the commander can approve paternity leave within 90 days of deployment and can authorize it outside that time period for extraordinary circumstances.
An injury to a nail may result in the loss of the nail. As long as the nail bed itself wasn't damaged, a lost nail should eventually grow back. Healthy fingernails grow at a rate of about 0.10mm per day, but toenails are slower, growing at only about one half to one third of a fingernail's rate.
Of course, you might not want nails that long. Although holding a world record would be cool, fingernails that long might make it a bit difficult to do some of the things you enjoy doing every day. Plus, it would take a lot of time and patience to grow them that long. Fingernails grow very slowly. On average, fingernails only grow about one tenth of an inch every month. For example, if you lost most of a fingernail, it could take six months or more for it to grow back completely. Fingernails do come in handy, though. Not only do they protect the soft tips of your fingers, but they also help you do many things, such as scratch your itchy back and open aluminum cans.