How do you stop a child eating fruit?

[Twiglett]

It is one of those extreme situations that actually becomes irritating

He really does eat far too much fruit .. since I've been noticing (at around 4pm) he's had 2 oranges, 4 apples, a pair and about 1/2 lb grapes and now he's come back with another orange and an apple

and I'm just cross .. because I'm sure the fruit acids are destroying his teeth

Stripping all the flesh off the mango stone with your teeth is the only way to placate the Mango Gods. I can't believe anyone would leave a mango stone unsucked! But you do have to floss afterwards, don't you, or the orange fronds flapping from between your teeth are a bit too scary.