One day Eric was traveling on horseback. At noon, he tied his horse to a  41 . A few minutes later, Paul came along and tied his horse to the same tree.     “My horse is wild,” said Eric. “Please tie your horse to another tree,   42  my horse will kill yours.” “No way!” Paul said, “I shall tie my horse as I like!” He tied up his horse and had his   43  nearby. After a moment they heard a terrible noise. The two horses were  44  . They ran up to them, but it was too   45  . Paul’s horse