Certain things made the worm grumpy. Mostly it came down to the interference of his home.
He was constantly having to repair the damage caused to his underground sanctuary.
Such as when the over earth giants stamped pass over head. the movement sent tremors causing cave ins through the corridors of his home.
Another problem were the over industrious ants expanding their empire. Never once asking if it is alright to build a new tunnel right through his living room. Then of course after he's had words with the un-civil engineers of the local ant community, they surely would leave — without bothering to repair the damage to his home. The massive clean up was always left to this one very unhappy worm.
