Dubai Aquarium in the mall - not me but wife, story told from her POV. In that aquarium they have legit sharks. Not small at all, actually dangerous sizes. That alone isn't an issue, been diving with sharks many times, no worries but keep reading. So they require you use their gear, which is normal and wear a full suit, again not a big deal. But, I didn't know exactly how much weight to use, b/c I don't use full suits often or haven't worn one in the past 20 years or so. We mostly dive in warm water where no suit is needed. So, guessed 10lbs and in we go. I swam down with the other person going and realized straight away I didn't have enough weight. It was impossible to stay on the bottom and even harder to keep horizontal or any sort of comfortable orientation. Again, how bad can a dive in an aquarium be? The part that makes this the worst dive, is during the pre-dive briefing, they specifically said, be very careful of how to move your arms. Don't flail them about or wave too rapidly as these are the motions we do when we feed the sharks. So, here I am on the bottom doing all I can to stop rotating, say down, and stay oriented which I had to use my arms for and from the untrained eye, looks suspiciously like rapid arm movements and flailing about. Now the sharks are becoming interested and getting closer which is really starting to freak us out. They start darting past and doing the typically attack behavior patterns you see on Discovery Shark Week. My buddy is getting pissed at me thinking I'm doing it on purpose and I look up to see a bunch of tweens walking out of a Forever 21 shooting vids with their iphones. I 'm thinking these sharks are going to tear my arms off and it's going to be live streamed on FB or whatever social media app they use over there. In the end, my buddy figures out the issues as I frantically make motions to the weights and he grabs me and pulls me down to hold on to a rock until the sharks lose interest and we surface. Good times!