Beedril Fury Attack Switch In

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So, this probably sounds a little strange and specific, but I've been trying to level up a Magikarp and my Beedrill by starting battles with Magikarp, and then switching Beedrill in, which only knows Fury Attacks. For some reason, EVERY time I do this, the first use of Fury Attacks misses. It's possible that I have extremely bad luck, but I found it odd with 85% accuracy. If it matters, my Beedrill has Swarm, and is of Bold Nature.

 

Edit: Nevermind, it was apparently just bad luck. I swear I'm not crazy, it happened like 15 times in a row, but of course, just after I wrote this, I landed a Fury Attack. Sorry about that.