behaves like a little angel

Sentence:Never mind, most of the time it behaves like a little angel.
Shall I use this sentence for animal and stuff/gadget??

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It would sound odd. Angels understand goodness.
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Hi Elaine,

I would use this expression to describe a machine working perfectly. You could say that your car usually behaves like a little angel - suggesting that most of the time it works very well, without problems.

Alan

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It may be a transatlantic difference, Eliane, but I would not compare my car to a ‘little angel’; it is not a natural utterance here. We would say ‘My car runs like a dream’.
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Hi,

Sometimes of course the dream turns into a nightmare.

Alan

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You’ve seen my Edsel, then, have you?
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