Well, what about say a simple DoS? I could see a drunkness being a defense. e.g., some poor schmoo thinks his machines being attacked. He drinks some while mulling it over and then goes searching (and successfully finds) a simple ICMP DoS script and launches it.

The "drunk" wouldn't have done the attack under other circumstances because his mental capacity would have told him it's wrong. But, with the addition of alcohol, his though process changes.

Something to think about anyways...