Just remembered a good one from some of my flood defence colleagues many years ago. A cow had died and wwas blocking a small stream, causing some localised flooding. The farmer who's cow it was, had cut off the ear tag so it couldn't be traced. The stream was too remote and the banks too steep for mechanical removal.
The two guys sent to "sort it out" came up with the brainwave of an on-site cremation and decided that petrol would be just the thing to make the job easier.....sadly they hadn't realised that the bloated stomach of the cow indicated a gas build up rather than just a fat cow
Petrol + methane + a tonne of cow meat / bone etc + a lighted match = one hell of a mess and it took some weeks to get themselves and the van clean
On the bright side, the stream wasn't blocked anymore