Any chance your gear contained ethyl oleate?
From PM user kensun
From PM user kensun
Ethyl oleate is one of the*fatty acid ethyl esters*(FAEE) that is formed in the body after ingestion of ethanol."
Ethanol is drinking alcohol so if it takes heavy drinking of alcohol it might be something to do with ethyl oleate.
http://en.m.wikipedia.org/wiki/Ethyl_oleate