About two months ago, when I first moved the tank to my apartment I had a moment like that.

So the tank had been up and running for about a week, and I was performing a water change. I noticed a bit of uneaten food on the sand bed and when I went to suck it up I accidentally sucked up an empty snail shell. The shell was about 3/4 down the hose when it stuck into place. The shell reduced the flow going into the bucket and allowed me more time to suck some of the algae off the rock (back in the dark days of my tank) so I just kept it in there for the next couple of water changes. About 3 water changes later, and I still have the shell in the hose. I start my siphon and get hit with this crazy sneezing fit that takes my eyes off the tank. Suddenly, I feel this sudden thud and think to myself about that Finding Nemo scene when Nemo gets stuck in the filter and I start to smile a bit. I look into the tube to see what it was, and low and behold it's my male clown stuck in the hose. I break the siphon and the fish is in a dry hose, I grab a knife and cut open the hose. At this point, I have a clown that's stuck in the hose so I gently blow him out of the hose into the bucket and put him in a breeder box in my display. He was breathing heavy for the night but the next morning he was back to himself. Seriously the craziest reefing moment I've ever had.