Well, it wasn't MEANT to be a drink, but gather round' children and I shall tell the tale anyway.
So my Mom use to buy the little metal cans of Hershey's syrup, I don't even know if they make them anymore but I digress. One day there was what appeared to be a can of the chocolate confection sitting by the kitchen sink already opened. Me being a trusting fool of the tender age of nine I did what any child would do giving the opportunity, I picked up that can and took a nice deep swig of it.
That was, as they say, a mistake.
See as it turns out the can had been empty that morning, and my dear sweet mother had dumped the grease from the bacon fried for breakfast into the empty vessel.
...
The words 'Projectile Vomiting' barely describe what happened then, but sufficed to say I from that point onwards made sure to check the contents of ANY opaque food container rather than simply trusting it.