I'm in a village, with 3 other players. 3 girls...
It goes well, but they are absolutely convinced that design is the way of being strong.
Some days ago, they decided to build a minehole. I wasn't online.
They built the minehole at a random place in the village so it'd looks good...

They did it well, with pali around... Nice. But hey girls, there are no metal vein under.
Neither a cave...

But we did continue digging. lvl2, nothing also. And now, lvl3, we are on a big iron vein.
Oh men, seriously, how a random minehole could fall on a big iron node 3 lvl below?

And how can I convince her that design sucks now?

Ah, the real subject was, how much chance do I have of being crushed by a troll on lvl3?
I'm using my main for mining, full change, so I hope i'll not see any troll. let's talk in troll per ore.
Like 1 for 100? 1 for 1 000? 1 for 1 000 000?