Some interesting points from Phil Hellmuth about how to manage your tournament life when you have a stack that is 15bb or smaller.

Monkey Thinking:

It’s particularly important to note that although K9 or better may be a mathematically sound re-raise all-in from late position with a short stack, knowledge of your opponents’ range is vital. Never make a zombie decision.
If you have established that the guy on the bb touches his nose when he’s got a big hand, shoving 15bb whilst holding K9 as he scratches his snoz is never a sensible play, whatever maths tells you.

Always remember, GOING all-in is a far superior play to CALLING all-in.