Oil is fun!
I once was switching out a facility that added the “additives” to make the little bottles of expensive oil and hadn’t been in there before,it was a bit steep down to the siding and the coupling was a bit rough(well they always told me that there wern’t eggs on the coupler) anyway somebody hadn’t thought to close the hatches before we coupled in - insert conductor joke here - and the impact sent geysers of oil skyward from about 10 tanks one after the other! When we tryed to pull the cars nothing happened,we just sat and spun. I had to uncouple and lay down sand making several passes before we could get out.