Hi, I thought you may like this Mentalrobics exercise from Braingle.com:
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Groupthink

"Groupthink" is a term used to describe a process whereby a group can make bad decisions even though each individual in the group may realize that the result is going to be bad.

People have a strong need to feel accepted in a group. Whenever an individual participates in a group, it causes the other participants to react in some way. People want to be liked, so they tend to participate in a way that gains them acceptance. One way to gain acceptance is to be very agreeable and not rock the boat. When a bad or bland idea is introduced, very few people may challenge it. If nobody proposes a better idea, groupthink can result.

Proposing a creative idea that differs from the group exposes the person and puts them in a vulnerable position. Nobody wants to fail in front of their peers or superiors. As a result, wild ideas are frequently self-censored or toned down to a level that is easily assimilated by the group. Unless there is a process that encourages wild ideas, they will seldom be introduced and groupthink can result.

Groupthink can also occur if an idea comes from higher up in the corporate ladder. Nobody wants to disagree with their boss, even if they know that the boss's idea will fail.

Brainstorming [ For more on 'Brainstorming' go here: http://www.braingle.com/mind/84.html ] is a process that encourages wild ideas. This is one way to avoid groupthink.
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For more mind exercises: http://www.braingle.com/mind/