I've used Rescue Remedy on myself and my horse, and we're both calmer. It just takes the edge off our nerves, doesn't actually sedate us. But I get really worked up at shows so I put 4 drops on my tongue and 2 in my water bottle. Solves the problem! I'm able to joke around without going "rawrr!".

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What doesn't kill you; is sure to leave a horrible scar. 
Success is not final, failure is not fatal: it is the courage to continue that counts.