You're a true nerd if you go often enough to the LFS
to get the chance to hear somebody say :
"I want to return this mag float because it had been floating in my tank for 2 weeks and has not collected any algae."
Or something like that
"So what kind of skimmer do you have? "Oh, I'm pretty sure it's a protein skimmer.""
Or maybe when you buy some new corals and don't want your wife to know (about money lol) When she's in the room but hasn't seen it yet, exclaim "LOOK WHAT GREW OUT OF THAT ROCK!!!