Who would you change seats for?

I boarded a plane this morning, headed from home to Nashville for the
Americana Music Conference this week. As I put my guitar in the
overhead bin, I dropped my phone on the shoulder of the woman who
would be seated in front of me. She was comfortably settled in, and I
felt so awkward and sorry for bonking her with this brick.

I got settled in too. Then Patty Griffin walked by. Cool, right?

Well, then the funniest thing happened. The woman I bonked did the
most violent double take, stared at Patty walking away down the aisle,
grabbed her bags, and hurriedly changed seats to sit by her. Really.

So here's the question. If you were comfortably settled in, who would
have to walk by on your flight to cause you to grab your stuff and
move?