This friend of mine had a major muppet moment involving:

- a very early morning flight in the dark after far too little sleep
- falling asleep at the gate later selected for the flight, thus being the first boarded
- boarding by walking outside and into an unstaffed holding pen
- the said holding pen having no signage at all beyond PUSH TO OPEN in large letters
- cue said friend groggily walking across the apron towards a random plane with matching livery
- cue panicking staff coming running and calling 'where in God's name are you going?'