Just stumbled upon this. Had seen it a long time ago, but had forgotten about it. Follow the instructions and let us know if it worked for you.
Now repeat saying the number 6 to yourself as fast
as you can for 15 seconds. Then page down...
QUICK!!! THINK OF A VEGETABLE!
Say it out loud!
Then page down.
You're thinking of a CARROT right?
If not, you're among the 2% of the population whose minds are warped enough to think of something else.
98% of people will answer with carrot when given this exercise.
==> Wish I could remember where I just copied this from but I have no clue!