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Doggone
Express Frustration
Use 'doggone' to convey mild irritation without offending anyone, as it's a polite alternative to swearing. 
Amiable Exclamation
'Doggone' can be a friendly, playful way to show surprise or disbelief in informal settings. 
Casual Contexts
Use 'doggone' in casual or conversational settings, generally with friends or in informal situations. 