You often see an exclamation mark in parentheses to show that the statement is sarcastic or not the intended real meaning:

• "Thanks a lot (!)"
• "How very kind of him to do such a thing (!)"
• "Well that's just great then (!)"

You often see an exclamation mark in parentheses to show that the statement is sarcastic or not the intended real meaning:

• Thanks a lot (!)

• How very kind of him to do such a thing (!)
• Well that's just great then (!)