Went to a Renn fair once with a similar outcome. You can't bring in outside drinks to the fair, they have to make their beer money after all. I decided I needed to sneak myself some red bulls and beer in. Being a renn faire I couldn't simply be drinking cans in the open and solo cups arent much fun so I decide to fill up my water bottles/flasks with red bull. Mind you, it's an old fashion looking glass bottle/flask that's hanging off my hip. Im sure you know where this is going.

Standing around in a hat shop and I reach down to check my pocket and ever so slightly tap the bottle and boom, the whole bottom of the bottle explodes downwards covering the floor and one pantleg in a glass shard filled sugary sticky mess. There were 4 of us in the shop and everyone was equally stunned for a solid 10 seconds just staring at the mess. No injuries aside from my pride and its pretty comical to think back on.