The above really is my question, Once my guests have entered my DP can they go out and come back in? The reason I ask is that my parents like a drink (or 2 or 3) but no one else will really drink so my mum came up with the bright idea that I should stick with the DP package where you get tea and coffe e.t.c and that they can just nip in to the rose and crown to get them a glass of wine if they fancy (our party is at the UK). Would they be able to bring this into my DP?