A brand-new British Airways flight attendant landed in hot water when he accidentally deployed an inflatable slide while the plane was taxiing. The unnamed newbie crew member aboard Flight BA75 bound for Lagos, Nigeria, on Friday, Jan. 13, inexplicably opened an emergency door, causing the Boeing 777’s slide to pop out moments after the plane pushed back from the airport gate. Emergency crews rushed to the aircraft — thinking it was about to be evacuated — before realizing the neophyte’s embarrassing slip-up. Stunned passengers were delayed for about four hours...