The air conditioning in the dojo broke and we were doing our Green Belt course for MCMAP and my instructor was like be there at 1000 if you still want to get your Green Belt, and after a shit load of waters and a couple of really sweaty awkward grappling matches, I got it. The hottest I ever was was in Kuwait it was 139 degrees in August when we landed. Unreal heat. Made me happy to work nights.