I am in Spain for SILs hen party. I am on a routine where I eat 3 meals a day, breakfast, lunch, dinner. However the other guests here just want to eat a big boozy lunch and that's it for the day. I've done it for a few days and cannot do another one. Am I rude if I just go off and have a sandwich for lunch and out to a restaurant myself for dinner? I like them all but it's just to much for me.