Surviving jet fires: Do funny or boring safety videos help most?

Lots of airlines have turned their passenger safety videos from boring sleep-aids to productions full of sight gags and giggles. But when bad stuff happens, such as the recent fire and smoke that consumed part of a British Airways jet on a Las Vegas runway, is funny or straight-forward better in helping us remember how to get out alive?

All 159 passengers and 13 crew made it off the Boeing 777-200, which was slated for a flight to London when its engine caught fire Tuesday. CNN reported more than a dozen were taken to hospitals with what appeared to be minor injuries. Social media went wild with dramatic photos and video of the fire.

A British Airways passenger safety video shown online is animated, but it's otherwise a straight-forward affair with no attempt at humor. Compare that with several recent Delta Air Lines videos that use wackiness to catch passenger attention.