Been there, Done that, got the DQ.
The problem I had was that I was used to shooting outdoor matches (got my BB, in Nov, and all matches since then were indoor). on the second outdoor match, I was not used to having berms on all three sides..
I was "gaming" a stage, and they had 3 targets on the far left side, almost parralel with the starting fence (which defined the 180's I realixed after the fact)..
Instead of going left parralel with the fence posts (and engaging the three on the left) I took the gate in the middle, and took 3 steps ahead before I went left.. when I engaged the three on the left, I was "just" over the 180.. I was called before I made the shot, and it was a good call by the ref. Learned my lesson on that day. it was a really nice run and gun stage. I was pissed that I couldn't finish it.
Oh well..