Hi everybody,

1) I will have you know that I was here first.
2) I'll have you know I'm a black belt in karate.
3) I'll have you know he is a very nice person.

From the sentences above , I'd like someone to clarify for me whether this "I'll have you know" expression is considered always rude or it depends on the context.

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Thanks.

 

I would say it depends on the context. It's emphatic, but not necessarily rude.

 

I agree with idilegre and would just mention that I always hear it, and use it, as a contraction: I'll rather than I will. But maybe that's just me.

 

I, in turn, agree with Copyright. I've never heard it with "I will," only with "I'll."

 

It is very emphatic, and usually used when contradicting something someone else has said or giving a warning. It is verging on being rude, but as Idealegre says it depends a bit on context. You wouldn't say it to someone you had a polite and dereferential relationship with, like a boss.

 

I think you hit the nail on the head, Orlando!

 

It can be used in response to stereotyping and other forms of rudeness:

- I didn't think you would know how to sew a button on, because you're a man.
- I'll have you know I've been sewing buttons back on my clothes since before you were born!

 

You could certainly say it to a boss in a joking manner: I'll have you know I'm worth half as much as you're paying me.

 

I suppose so, but your example sounds a bit weird - who would say that? But, generally, yes, it can be used in a light, jokey manner in some contexts, but that's definitely one to be used carefully. It would all be in the tone of voice etc. I wouldn't recommend it to non-native speakers.