Mr Busman chuck, if you have no joy, don't get mad ..... just get even.
Tell this 'nice' man that it's the ring pull that's the problem. Offer him a can of the cola to test the durability of the ring pull for himself ........ one which, of course, you have vigourously shook out of his visibily.
Now understandably, he's going to be a tad upset at his drenching so offer him words of comfort, such as, "whoopsie daisy, that one was fizzy wasn't it!" Also please remember to be a gentleman, carry a clean hankerchief in your pocket so no one embarrasses him further by pointing out he has cola dripping from his chin.
