It's not all that shocking. These folks are just having a good time.
4 seconds sound clip from the Clue (1985) movie soundboard.
You can hear this line at 01:01:16.556 in the Blu-ray version of the movie.
Quote context
[...]
- So, this is the dining room.
- Come on!
- What's going on in those two rooms?
- Yes!
- Officer, I don't think you should go in there.
- Why not?
- Because it's all too shocking.
- It's not all that shocking. These folks are just having a good time.
(Miss Scarlet gasps in surprise)
- You're not gonna drive home, are you?
- He won't be driving home, Officer. I promise you that.
- No.
- Somebody will give him a lift?
[...]