Oh, I would have accepted the leprosy alone; but not leprosy and eroticism together, oh no, for the love of God, erotic leprosy?
Re: Saxony Question Underpass (Tunnel):
English rules are correct. The below quote is from another thread (Underpass and Township).
Here's the phrasing for Underpass: "For the purposes of Move actions for your character and mechs, mountains you control and all tunnels (including your Mine if you have one) are considered to be adjacent to each other."
So yes, you can move from a mountain to a tunnel, from a tunnel to a mountain you control, and between mountains you control.