Several years ago, I arrived at work early on April Fool's Day. I had the office all to myself, and I had an evil plan in mind. I removed the lid from the sugar container, and replaced it with Salvital - you know, that fizzy stuff you add to water when you've got an upset stomach. Then I returned to my desk and waited for the mayhem to unfold.
Soon people started to return from the kitchen, uttering all manner of expletives, such as, "My f***ing cup is bubbling over", and, "Who was the crazy ******* who did that?" It was one of my proudest moments in my 35 years in Defence - mainly because I didn't get caught

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