Helicopter Ditching Survival Training

I got talked into volunteering for HUET training at work.  HUET stands for something like 'Helicopter Underwater Emergency Training'.  Any worker that goes to an offshore oil site has to have this training where they learn how to get out of a helicopter that crashes into the water, then they have to survive for a while till rescue gets there.
So first they put us in these thick cotten overalls that offshore workers would wear, and we had to swim around for a while, so it was like swimming around with a brick!  We were also taught lots of water survival tricks, like how to make a life preserver from your pants, and how to tow someone who is injured, and how to put on your life preserver when there is splashing and waves.
Then we got to learn about deploying the life raft.  Evidently all these offshore helicopters have life rafts, big honking life rafts.  And if the liferaft happens to deploy upside down (which evidently is very common), then you have to upright it.  I was chosen to 'upright' the liferaft.  I didn't think that there was any way that I could actually tump it over, so I didn't plan ahead on how to get out from under it when the sucker actually went over.  Here is the video:

After all the survival skills and life raft tumping, then we moved on to the 'getting out of a ditched helicopter' skills.  By this time, it is around 1pm and I am rather anxious for a potty break.  I could not seem to make myself pee in the pool, and I really, really tried, because hauling my wet coverall butt through the chilly facility was not going to be fun.  So while group 1-3 were being lowered into the water, I hauled wet dripping coverall butt to the bathroom.  I may have missed a little of the instruction.  When we were submerged into the water, we were supposed to wait 7 seconds before undoing our seatbelt and swimming out of the downed copter.  But I just counted to 7 (really fast) and was out in record time.  So the instructor went over how to count to 7 (slowly) with me. 
Next, they put the windows and doors on the helicopter mockup and we were supposed to push out the window and then egress the underwater copter.  There were a couple of people who never did get their window to pop out, so they had to be 'helped' by the safety divers.  This did not inspire confidence in me.  I sat by the door, which had a release handle, so my door came open really easy.  I even waited the 7 seconds, and all was fine. 
All of that was just practice to get familiar with ditching and how to pop out windows.  If a helicopter does crash into the water, then it usually tumps upside down.  So the helicopter mockup that they lower into the water has this trolley system that makes it rotate 180 degrees.  So they lower you into the water, rotate you really fast 180 degrees, then you are supposed to wait 7 seconds and pop out the windows and swim out.  In typical training you try this first without the windows in, then with the windows in.  We were running short of time, so we were only do the upside down ditching scenario with windows out.  Well..... I counted really fast again, cuz I wanted OUT of there.  That spinning around got water up my nose and I was all confused.  I did find the exit, but was having trouble getting out, then I felt the instructor push my butt out the door and I popped right out. 
The instructors did off the 16 of us a chance to do the upside down ditching with the windows in, but by then it was 2pm, we had been in the water for 4 hours, and he only got 2 takers.  I was not one of them!