This may very well be for real. I think Cameron might have blown a microchip or two. He's always been a little keyed up.
12 seconds sound clip from the Ferris Bueller's Day Off movie soundboard.
You can hear this line at 01:13:11 in the Blu-ray version of the movie.
Quote context
[...]
- Who is it? Oh, I'm sorry. I can't come to the door right now.
- All I wanted to do was give him a good day.
- We're gonna graduate in a couple of months and then we'll have the summer.
- He'll work and I'll work. We'll see each other at night and on the weekends.
- Then he'll go to one school and I'll go to another. Basically that will be it.
- Sloane's as big a problem. She still has another year of high school. How do I deal with that?
[...]