It's like someone walking in when you're in the bath. It's an invasion of privacy. That's what it is!
6 seconds sound clip from the Carry On Screaming! movie soundboard.
You can hear this line at 00:05:12 in the Blu-ray version of the movie.
Quote context
[...]
- What did I tell you? There's nobody there...
- Doris? Doris! Come on, Doris, stop messing about. Where are you? Doris? Well, answer me.
- Well, if that's all you have to say, I'll telephone my superior.
- That noise! What's that noise?
- It's only the telephone bell! Aren't you ever going to get used to it?
- You in a bath - that'd stop any invasion, that would.
- Well, I'm not having it in my house a moment longer - do you hear?
- And if it doesn't go, I will. I can promise you that.
- Promises, promises. Always promises.
- Slobotham here, Sergeant. Sorry if I'm disturbing you and Mrs Bung.
- That's all right. We weren't doing anything.
[...]