"Anonymous. Bill Irvine who for years was the Master of Ceromonies at Blackpool on the many times I was there, would regularly anounce from the stage, usually in the Quickstep, that if you do not dance towards the two corners at the end of side one and the begining of side three those judges who are on each of those corners will not mark you. They will not even look at you. What was happening was some couples would half way down side one cut straight across the floor to the opposite corner. This caused no end of trouble and collisions."
There's a big difference between cutting off an entire corner in a large room, and avoiding the point of one in a small room when that corner already contains more people than it can hold.
Do you really think you do anyone any benefit by adding yourselves to a traffic jam?
And don't even think about going in there to do a line. If you are going to do that at a social, you need to do it with an awareness of traffic flow both in front of you and behind you, which rules out doing it in an already crowded corner.