I never encountered a BOFH in my career but can certainly understand their frustration with users. Maybe I haven’t worked for the “wrong” companies but the first BOFH moment would be a sysadmins last where I’ve worked. If it became a pattern then the IT manager and the sysadmin would have been fired. Then again, I’ve worked in Microsoft shops and never had to deal with a crusty, silver pony tailed Unix sysadmins so maybe the stack plays a part.