Playing tourneys with big stack
From time to time when I play tourneys I get really lucky. I have played with a huge stack and sometimes even the biggest. However, that lucky state has given me problems. How am I supposed to play with a big stack. I have heard: small stacks want to survive, middle stacks take it easy not to risk too much and big stacks bully around. I got a feeling that I need to push and since that's pretty tough I haven't ben very good at it. Instead I have ended up doing some real stupid mistakes, losing most of my stack in one blow and then the rest during the tilt. How do I keep playing good tourney poker and still benefit from my big stack without risking it?
One answer is think twice or even three times when you meet another big stack.
Any more ideas?