According to Herodotus' 2,500 year old account, the ancient Persians found a solution:
"[The Persians] are accustomed to deliberating on the most serious business while they are drunk, and whatever decision they reach in these sessions, it is proposed to them again the next day by the host in who house they had deliberated the night before. Then, if the decision still pleases them when they are sober, they act on it; if not, they give it up. Conversely, whatever provisional decisions they consider while sober, they reconsider when they are drunk."
-- The Histories, 1.133
This best of both worlds approach checks two of humanities worst tendencies! All decisions are provisional decisions until the blood/alcohol content has varied one way or the other.