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Appending くれる to the て form of a (normal) verb means that someone else did the
work. For example:

`食べてくれた` - (someone) ate it (and I am happy he ate it)  

The sentence above has a nuance that the person who ate, did a favour to me,
and that favour was that he ate the food (whatever the reason, he did me a
favour).

The question is, what if I didn't want that someone to eat the food, but that
someone still ate the food (and I am pissed about it). In this case, will it
be possible to use the same sentence structure? I.e:

`食べてくれた` - (someone) ate it (and I am super pissed that he ate it)  

If it is possible to use くれる even in the second example above, a second
question arises and that is, how would I know if the action done was in favour
of or was in spite of me. For example, if someone was to tell me `食べてくれたな`,
how would I know if he is pissed that I ate it, or he is happy that I ate it?
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2020-02-08T13:27:49.563
74328
2020-02-08T14:22:10.767
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question
giving-and-receiving
appending くれる to verbs for unwanted things that someone else did
> what if I didn't want that someone to eat the food, but that someone still
> ate the food (and I am pissed about it).

How about 「食べ **やがった** (な)。」「食べ **やがって** ！」, using 「やがる」?  
You can also say 「 **よくも** 食べやがったな。」「 **よくも** 食べやがって！」 or just 「 **よくも**
食べたな！」  
(But please note that 「～やがる」 and 「よくも」 both sound pretty strong, angry and
rough.)

> will it be possible to use the same sentence structure?

Yes, you could say 「食べて **くれた** な。」 _sarcastically_.  
You could also say 「 **よくも** 食べてくれたな。」, where よくも explicitly shows that you're
pissed off.

> how would I know if the action done was in favour of or was in spite of me.
> For example, if someone was to tell me 食べてくれたな, how would I know if he is
> pissed that I ate it, or he is happy that I ate it?

I think you should just see from the tone of the voice and the speaker's
facial expression.

[![](https://i.stack.imgur.com/x1e1J.jpg)](https://i.stack.imgur.com/x1e1J.jpg)
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2020-02-08T14:00:13.887
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2020-02-08T14:22:10.767
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answer