i just read the other end of the leash. it says not to repeat commands, which i interpreted as quickly repeating quickly, i.e. "sit,sit,SIT", since this is confusing to the dog. but then if i repeat the command after a minute or so, i think i read in the power of positive training that this will teach the dog that it is ok to disregard a command. how long should i be waiting before repeating the command? or is it better that she gets no reward for failing to respond and i just move on to a different command? also do these rules apply to nonverbal commands?