I usually drink the whole drink and just pretend that i dont know its there and pretend to start choking,after someone gives me the heimlich manouvre i spit out the celery and start shouting22 what idiot has let some of his lunch somehow fall into my drink"when they explain that its meant to be in there i then shout "vegetables belong on a plate not in a glass,and is he trying to call me queer"? this is usually followed by the pubowner appologising and me and my mates recieving free drinks.