Kamikaze Swim

It's wasn't as bad as I thought it would be, after a 800m warmup, we were told that we were going to swim as many 50m freestyles as we could - which we had 60 sec to complete (at first)- we would start at zero, then if you finished in 45 sec, you had a bit of rest, then you would start at the 1 second hand, but you had to be back by the 60 second mark, then start at 2 seconds and again back at the 60 second mark on the clock - each 50m you would have less time to complete as you got more tired and swam slower, and if you didn't get back in time you were called out. I only finished 10, because I stupidly took my time leisurely drifting in at one point - forgetting that my time to complete was getting shorter each 50m. At the end of it there were 3 people who completed over 28 50m swims - wow...