This is a big reason why I haven't been back to my "local" IDPA club. The first time I shot there I went prepared, read the rulebook, knew the differences between IPSC and IDPA--I thought. Shooting a revolver, course description called for six shots, tactical reload, movement--dropped empty moon on ground and was penalized. I protested that it was empty and was told that the rulebook didn't care--I asked to be shown the rule and NO ONE could come up with a rulebook. Was also told that the rule changed "depending on how many revolver shooters we get".
No thanks. I made the effort to learn your rules, and got dinged anyway.
"Formerly we suffered from crimes; now we suffer from laws." --- Publius Cornelius Tacitus