Tecumseh didn't believe in the the torture of captives. But when Jacob Greathouse and his wife wete taken captive in 1791, instead of answering the question "What shall we do with them?", it is said that he turned and walked away without answering. What followed was decidedly unpleasant for Mr. and Mrs. Greathouse, but retribution for what they had done to Logan and his family.

Logan would have had more reason to utter a curse than Tecumseh, I think.