Alternative to shoots?

• Mild expletives
• Mild oaths
• Expressions of frustration
• Mild cusses
• Darns? No, close
• Euphemistic expletives
• Relatives of "Gee whiz" and "Shucks!"
• "The Far Side" exclamations

Wiktionary Word definitions in Wiktionary
vb. (en-third-person singular of: dang)