The argument about it being fair because non-smokers are taking time to make personal phone calls and leave for kids' appointments doesn't work when it's the smokers that are doing this, too. Someone in my office kept track of how much time the smokers spent on their breaks one week, and it averaged out to 2 1/2 hours a day. They get an hour, so they are over by 1 1/2 hours PER DAY. These are also the people who stroll in late every day and leave as soon as the clock strikes 5.
I could understand a quick break if you really can't do without, but I don't think it's necessary to take 25-30 minutes everytime. It takes about 60 seconds to walk outside here, so the entire time is spent socializing. Funny how quick the breaks are on the rainy or freezing cold days!