There is already a
thread on this subject here. It covers the subject well. But I'll answer - Firstly, I honestly don't think you'll get out of a bug smasher, even with thousands of feet beneath you when the problem starts. Secondly - you won't fit. Thirdly, too many will give up, try and bail out and die instead of switching to the other tank. Lastly, I not so sure bailing out have ever been a recommendation from accident investigators.