It depends on where you work and what job you do I guess, some people can get away with a bit of internet surfing at work as long as they don't abuse it and let it affect their productivity (although some of my friends seemed to get away with actively chatting on message boards while at work), whereas some people have very restricted internet at work (one of my friends can't use facebook at work because the company has blocked it) or can't go on it at all, but some people might need to use the internet to help them with their work. And you always get lunch breaks and in some places morning and afternoon breaks.

Although if you were looking at one sixcyl's film pages (with the girly pictures) and your boss was suddenly looking over your shoulder, I don't think it would look too good!