If you can keep your head when all about you customers and colleagues are losing theirs and blaming it on you then, with apologies to Kipling, you'll stand a decent chance of being comfortable in tech support. I often think about the crossover between support and test and I've recruited people with support experience to work as testers more than once. I've also noted before that I have my test team watch all support traffic and it's common in many companies for testers to be brought in for advice and to test fixes for issues that start as support tickets. But being the owner of a hard-to-reproduce high-value support issue, without a buffer between you and the customer who is experiencing the pain, being the one responsible for working out what the issue is and identifying a workaround adds piquancy and urgency and pressure to the diagnostic task. This kind of thing is often more constrained than the average test mission. In this scenario you know that there...