ki hea noa iho
1. that's just asking for trouble, you're tempting fate - an idiom expressing the speaker's belief that what has been suggested will end badly.
Rangi: E Mā, kei te haere au ki Bosnia. Pare: Ai, kaua e haere. Ki hea noa iho koe mate kurī noa iho ai (HKK 1999:105). / Rangi: Mum, I'm going to Bosnia. Pare: Oh! Please don't go. You'll just get killed.
Ā, e hāngai ana anō tēnei ki a tātou, te hunga pakeke. Ki hea noa iho tātou raruraru ai ki te rite tonu tō tātou ngākau kawa ki te reo o iwi kē (HM 2/1996:2). / And this is also applicable to us, the older generation. We are asking for trouble if we have a bad attitude towards the dialects of other tribes.