this with grace, and it seems to take me a while to learn some things (I see this resistance mirrored in my kids as I try to instil practices of etiquette etc that seem out-of-date/old-fashioned!). I'd add this: in every dance hall (ballroom, milonga) I've been too with some "organization," the LOD is actually more like a large traffic circle, with slower dancers in the middle and faster dancers on the outside. If you're doing figures, please move to the centre where there is little traffic and what is there is moving slowly, instead of taking up scarce and useable floor space on the outside edges. If you're moving slower than some other dancers, edge into the centre and leave the outside lane open for those who -- because they're more skillful or simply nuts about speed -- move faster.