Just as I know it's 'hear, hear', but can accept that there could be an argument for 'here, here', I can also see an argument for 'thing', (although I would refute it, because I know it's 'think'!). 'If you think you're staying out till 1 a.m., you've got another thing coming', could (but doesn't) mean that you have another situation/state of affairs coming, i.e. the situation that you won't actually be staying out till 1 a.m.