Now, if I believed a Giant dwelt on the far side of the door, I wouldn't go so far as to cast stones at it, lest it provoke him to anger. I am somewhat advanced in years, not up to tackling a wrathful giant. However, this particular giant has a story told about him which is worth mentioning.
A Norwegian called John Blessom, an historical person who throve in the 17th Century, was down in Copenhagen for litigious purposes. He was, however, homesick. Jutul happened also to be visiting the city and offered him a ride home on his sled. The speed with which Jutul's horse drew this vehicle was breathtaking. Blessom could not discern sea or sky. At one stage they stopped for a rest and, as they shot off again, Blessom thought he saw a pole with a skull on the top of it. At last they reached the Giant's doorway. Jutul went in and told Blessom to go home and not to look back. Guess what? He looked back and there was a twist in his neck ever after.
The reader may have noticed there is some apparent confusion about whether Jutul is a Giant or a Troll. Actually, however, the word Troll was used in Northern Europe to cover a wide variety of supernatural beings. Very big trolls were said to turn to stones or trees if daylight struck them. A variant of this, supplied by the folklorist G. Hyltén-Cavallius, is that Giants died if struck by sunlight but Trolls burst asunder.
I don't think I would like to be in the vicinity of a bursting troll. It would not be pleasant to be struck by the débris flying through the air.