Fortunato - you have my sympathy. I readily admit that the sound of heavy shoe dancing not done well is dreadful. I have come back from beginners competitions with the most fightful headaches. If it happens again - try and get them to dance only to reels in light shoes ( doen't work so well for the boys) or perhaps put aside a small part of the evening for a little display. Some parents can't see any problem and i must admit sometimes its difficult to some kids to stop dancing.

All the best

Julie