Maybe it was his mother passing.
4 seconds sound clip from the Step Brothers (2008) movie soundboard.
You can hear this line at 00:14:27 in the Blu-ray version of the movie.
Quote context
[...]
- I mean, he left college his junior year because he said he wanted to join the family business.
- But you're a medical doctor.
- Believe me, I've told him that.
- But he just always says, It's all about who you know.
- I mean, I don't know where he got this sense of entitlement.
- Maybe it was his mother passing.
- From what you've told me, his younger brother Derek's been quite successful.
- Well, certainly when his father and I split, that was difficult for him.
- And this one time, when Brennan was 17 and Derek was 14 and Brennan decided to enter a talent show.
- He sang a song from an old pirate musical.
[...]