It was halves each. They actually have nice half-pint glasses in O'Neill's: short ones, closer in shape to pint glasses.
And we followed your earlier recommendation to use the snug in the front bar.
For all those who were there (a_friend_in_mead, Hendrixcat, Irish Party Ale, Jaegarboy, microgirl, rossa, sbillings, a_friend_in_mead's friend Mark) in the light of events the first three pages of this thread are hilarious.