I'd just beaten Gilgamesh and I couldn't get out of the goddamned mines without running into that Rare Game Monster in the area. It wiped the floor with me, along with those insanely high leveled Undead Zombies and Bats, so I died three or four times before I successfully escaped. Honestly, I beat a boss only to get mobbed by normal monsters...

Still...that mine still terrifies me.