Tiny distractions that disrupt your flow?

Someone moved into a desk near-ish to mine. She speaks with a very sibilant S - like a hiss. And she speaks low. And since my name has an S in it, I keep getting distracted by what sounds like hissing, and I also think she’s talking about me! 😂

She is the nicest person, too! Ugh I hate that it even enters my brain but immediately distracts from what I am doing.

What are your tiny distractions?