After running out of battles with several Digletts and Roggenrolas, you decided to hide behind a small pile of stones that you found nearby. And everything worked, all the Pokemon went to look for you further. However, you noticed too late that the stones are actually Gigalith.

Gigalith stands up and howls in irritation. "Giga... Lith..." It grumbles and puffs, clearly annoyed by something.