At an intern event an intern asked some question along the lines of "What's one quality of a competitor you wish Microsoft had?" They were clearly asking about cultural qualities but Ballmer's response was "I'd take Google's search engine because that thing prints money". Then he did this super exaggerated gesture and noise imitating a money machine printing money.
At the time that was a super disappointing answer to me because as an intern within the Bing division I really felt like there was this culture of "Bing is better and it's not our fault Google is beating us". To see Ballmer not use the question as an opportunity to talk about ways Microsoft could improve felt like seeing the source of that cultural problem.
The other was from an intern event with Phil Spencer. Phil Spencer at the time was the head of Xbox's Games Division, but not yet the head of Xbox. Spencer said he was in Ballmer's office one day and Ballmer asked him "Why don't you just make the games that sell?"