That's why they want more than one person. Most of the time you don't have much to do so you can just have irc going in the background while you go about your work or whatever. But, you still need to have a good understanding as to how things work for when things go wrong or people attempt channel takeovers. A lot of channels use bots to automate things but like anything else, people like to hack them so you still need to know your stuff. I briefly thought that I could possibly do it while at work but while I've been an Op in the past, it's a far cry from being a mod....and honestly I'm not really into it anymore...sucks up too much of my time...time better spent working on design skills or what-have-you.