>>>>>>>I was like that at that age. Then, probably around age 13 or so, I took it on myself to shorten my list of things I don't eat as a part of growing up. Somewhere along the way I switched from "but I never ate THAT!" to "mmm... I never ate that".
>>>>>>
>>>>>>Dragan, don't let yourself be dragged down to US grammar!
>>>>>>
>>>>>>"but I have never eaten THAT!" to "mmm... I have never eaten that".
>>>>
>>>>>
>>>>>Now which one of those... never mind, I give up.
>>>>
>>>>No both are correct just as both were US incorrect :-)
>>>
>>>Which one describes one-time action and which one a continuous or repetitive one, is what I meant.
>>
>>"I never ate that" is a "nonetime" action :-)
>>"I have never eaten that" is a never-time action.
>
>This was negative information. I.e. now I know less than before.

On the assumption that you're serious, we would say: "I have never eaten that, but I might try it now".

"I left the room for 5 mins and someone has eaten my dessert"

"I ate the same meal yesterday". "I ate in the canteen yesterday"

"Coming for lunch?" - "No, I've eaten already" - not "I ate already"