The most stressful time I had at Palo Alto Networks was when our whole system in which we did our work on was down for practically the whole workday. I worked the graveyard shift, so even contacting my boss by e-mail and calling didn't help. After trying everything I could to reboot things from my end of things, I stayed up for my whole shift as regular waiting to see if the system would reboot itself and waited for my team supervisor to message/call me back to tell me it was okay to get back to work. I just stayed level headed and did what I could, followed what procedures I was trained to do, and awaited further instructions. It was less of a situation I could overcome and more of one I had to wait out.