A new study suggests just how dependent business people have become on email. In the US, twenty percent of people immediately get angry if their email doesn’t work. However, the calm ones don’t stay that way very long if things don’t come back. After five minutes downtime, another 13% have switched over to the angry side of the fence. By the half hour point, two-thirds of users are furious, and by the one hour mark, a full 82% of email-less business users are ready to burn down their cubicles. Folks over in the UK are a little bit calmer early on, but after an hour, their true colors come through, and they’re just as angry as those of us on this side of the Atlantic. Meanwhile, if you think the users have stress problems, think about the IT staff that is charged with keeping all those users happy. Many find it incredibly stressful to keep all those workers from revolting. 20% expect to be fired if they were to ever let downtime reach a full day. A full 37% say that if they ever experienced a week’s downtime, it would be more stressful than going through a divorce.