Possible Clues:

• Sudden outbreak of anger or violence
• Sudden outbreak
• Sudden outbreak (of violence, etc)
• Recurrence of an old problem
• Erupt suddenly
• Lose ones temper and feel, say, revolting
• Sudden intensification
• Outburst and terrible earful over parking
• No sign in Persian Gulf of sudden outburst
• Stranded rower may need to get this -- or row!