I've been having dreams that I'm at a party or out to dinner, and absentmindedly I'll pick up a drink. Next thing I know, I've gone through 1/2 bottle of wine and then I freak out because I remember that I'm pregnant! My most recent dream about this (I've had six so far) is that I drank 3 chocolate martinis.
I don't know why I'm so worried about accidentally drinking. I'm not even a very big drinker.
No food or horny dreams, though, but I hear that's common.