Taking time off, no matter what your job entails, is absolutely crucial for mental health and general wellbeing. But some employers either don't agree with that, or simply don't care. Such is the case of Redditor u/Nannyneedabreak, whose username kind of says it all. By her account, the twenty-two year old woman has been nannying two amazing kids, aged six and eight. And she's never taken any time off. Seven months ago, she decided to request time off for her sister's wedding this coming weeken…