You're facilitating a workshop. It's time for an activity. You start giving the first instruction, you continue onto the second instruction then the third, but your learners have already started moving around carrying out the first instruction. You give the fourth instruction and your learners are starting to ask you to repeat the second instruction etc etc. Confusion! In fact, learners get so caught up with the instructions that the whole impact of the activity is lost.
And, for some reason, train-the-trainer workshops never teach us how to give clear, concise instructions that actually aid rather than hinder- until now.