This is how it sometimes ends when work isn’t going well. A similar video also appears on YouTube under the title “Vista install“. So don’t make any IT guy angry, because he may turn aggressive, although that depends on the language and the environment he works in. Even if it doesn’t look like it, programmers are only human too. I’d be quite curious to know how his boss reacted or which company it was. The only thing that is perhaps clear is that it was in the early 1990s.