I never know whether to take you seriously or not.
4 seconds sound clip from the The Oklahoma Kid (1939) movie soundboard.
You can hear this line at 00:39:42 in the DVD version of the movie.
Quote context
[...]
- He isn't here. I don't know where I can reach him.
- You could help me if you wanted to.
- They tell me that the candidate for mayor is in jail.
- Yes, strangely enough, it is.
- I don't like to see anybody in jail. You can understand that, can't you?
- I never know whether to take you seriously or not.
- I'm absolutely on the level. I'd really like to help him.
- It's not going to hurt anything if you tell me what you know. Please.
- Well, they say he killed a man, a Mr. Bates.
- Let's not mind what they say. What does say?
- He says that Bates sent for him.
[...]