Grimthok Metalspoons grew up in a tough part of a dwarven town, or didn't, he changes his story constantly.
'Spoons' was first encountered hidden in the wall of the mines of Grim'nak. He was trying to persuade travellers into the fountain to feed the spider so the Goblins wouldn't kill him. Upon being rescued he helped the party navigate the mines and vanquish the spider.
The party has developed a very delicate trust/reward relationship with Spoons.
"Look, uh, I got two rocks in there, uh, sentimental value, family heirloom..." - Spoons