(Reminders for myself, mostly. I really can't say for sure if these would work 100% for others.)

• Acknowledge that an episode is occurring
• Excuse myself from whatever I'm doing
• Mindful breathing
• Drink water
• Walk/jog/run outside
• Call family on the phone
• Slowly, patiently process what went wrong
• For the gove of Lod, avoid breaking things, hitting self and other people, lashing out, etc.