Ordinary looking commuter, wearing suit, carrying briefcase.
- Walks up left hand side of escalator and then stops 10 steps before the top. Grrr.
- Stands at ticket barrier and waits until preceding passenger has gone through and gate has fully closed before slapping card heavily onto Oyster card reader. Grrr.
- Meanders crazily across station concourse causing at least half a dozen other people to take evasive action. Grrr.