So they would know it was his.
I didn't customize a glass, but I was drinking water, being the keeper of the car keys and all. Despite having to decline the myriad of tempting wine varieties, I did manage my fair share of barbequed morsels on skewers and desserty bits. The designated driver needs some perks, after all.
Kudos to the kids of the corp for organizing this evening's dine-around. You don't need no old boys' social committee to tell you how to have fun.