I just have to laugh, shake my head and step right in front of em.
Flying ATL to TPA this past Friday. Caught an earlier flight with same day confirmation. Got the bulk head aisle just behind FC. I stepped into the Breezeway line after FC was called and all had passed through. Wanted to board as early as possible to ensure an overhead (due to bulkhead).
As I'm waiting for Zone 2 to be called, this guy walks right past me and pulls his bag in front of me, avoids eye contact and is holding his BP. I ask, "are you in First?". "No", he says. So I pulled myself and my bag right around in front of him. Even before Breezeway, I've had jerks pull these same maneuvers. Never ceases to amaze me the nerve some Medallions have.
Travel safe!