When my seven year old has done something super naughty like dropping my iPod in the loo, his apologies are immediate and from the heart – usually followed by floods of tears.
When he does something that only I think is naughty, the only way to drag an apology out of him is with a threat, which usually goes something like this: “If you don’t say sorry...”
So he finally does, as he storms off muttering about the unfairness of it all under his breath.