If they have hollowed out volcanoes in Wales then that is surely where Warren Gatland's office is located. Last week he revealed that he chose to take Andy Farrell on the Lions tour over Shaun Edwards in the hope of learning some of England's tactics ahead of the World Cup.
And now there's even more evidence of the Kiwi's evil genius.
Speaking on Galway Bay FM, the Wales boss intimated that he questioned Connacht and Ireland's Robbie Henshaw about any qualifications that he might have which would allow him to play for Wales.
I saw him when we were over here with the Lions and that was before he was capped.
I asked him if he had any Welsh qualifications. I said: 'I'll cap you if they don't do it quick enough'