I never dive with a guide. I dive with a buddy as part of a team and always pay close attention to any pre-dive briefing. I've done this since certified. Now I'm a DM, and offer this service to others who want it, but I make sure that they do not need it. I feel that if you are that dependent on a DM/ guide, you should take another class to help, though I am happy to help anyone get the experience required to get to that level. HYOH.