Run then Swim

I knew this one. I knew it and I sort of lost all sense of reason. The rule is if you are going to do a brick or double up your training, don't run then swim. Swim first, then run. Or swim, then bike. Whatever you do, swim first.
I did the opposite. I ran at lunch for 50 minutes, then I swam at 3:30. So about 40 minutes into the swim, my middle toe on my right foot cramped, then my right calf, then my left calf. They didn't cramp a little, the cramped down huge. It didn't hurt as much as a getting hit in the face or losing a limb, but I think it hurt almost that much. I stopped swimming, stretched the toe and both calves out, swam again, BAM cramped again. I ended up just swimming through the cramps. They didn't go away, they just hurt. So I got about 50 minutes of swim in. It would have been an hour, but stupidity got in the way. That happens.