I was doing my first claas for DM with students today. Everyone but me had gear problems ( was this part of the class?) Then the water was murkey today so I had a tough time keeping track of everyone. Then one of my "students" was sight impared and a diabetic with an insluin pump. She can't see the gagues so I had to read them for her and keep a very close eye on her. Then between dives I ate a tuna sandwich that wanted to reenter the world but wouldn't so I felt like crap for the second dive. Hope tomorrow goes better.