So a lot of games have in game fake operating systems. They are usually just standard fare utilitarian. I got to thinking that maybe I will have a brand of OS in game that is loosely similar to certain IRL OSes. However, I want to have at least one in game brand OS that insults the user.

user: <clicks on browser in fake computer OS> (loosely based on IE)
computer OS: Don't use that you stupid asshole!
user: ...