Guilty as charged, your Honour!
Last time I was in Cuba, I was down to 95 feet. At that time, I only had my Open Water as well.
Looking back through my log book, Most of my dives to date, were below the 60ft / 18 meter level. My only excuse really, is that the two guys diving with me, are both Master Divers, so I have plenty of experience to rely on.
But, I have now done the right thing, and have both my Advanced, and my Enriched Air certifications.