my experience with F doubles: i have never even asked for two, at once. but the gracious hosts have given me (4x) a nice glass already mixed, another paper cup 2/3 full of mixer and an additional bottle. be it bailey's or vodka. and as i do not "demand" service, the total number is not an issue. (three or four on a 3.5 hour leg on the way to PVR). and none of those "pocketed". look forward to half-full cup. b