article_snippet: Hotel heir Conrad Hughes Hilton III turned 21 on Tuesday, but his'll be spending his birthday week in court - pleading guilty to assault for the disturbance his caused on board a British Airways flight this past summer .
article_snippet: At 2:20 a.m. London time, 'a second safety briefing is held to discuss restraining Hilton, who is again asleep,' reported Wallace.
article_snippet: Shapiro, told TMZ.com that Hilton took a sleeping pill before the flight, which may have caused Wallace behavior.
article_snippet: Shapiro also said Hilton voluntarily checked Shapiro into a 30-day rehab program after the flight.
article_snippet: On February 2, Hilton was charged with intimidating or assaulting the flight crew to the point where Shapiro interfered with their ability to perform their duties - a crime which carries a sentence of up to 20 years in prison.
article_snippet: No one had heard of Hilton's in-flight meltdown until February when a federal criminal complaint was filed.
article_snippet: Hilton was travelling aboard an AIRBUS A380 and was sat  on the top deck before Shapiro wandered down stairs and started abusing other passengers .
highlights_snippet: Conrad Hughes Hilton III was arrested after causing a disturbance on board a British Airways flight from London to LA last July .
  