"They may be right" is what Bill Bernbach had written on a note he kept in his pocket. Whenever anyone challenged his ideas this simple message helped him stay objective.

It helped him follow Biggie’s most memorable commandment: Never get high on your own supply. A rule every one of us creatives should follow.

Ideas are like your children. And If you've ever waited to pick your kids up from school; you understand how insanely biased parents can get. They are getting high on their own supply, and this is the same crazy way you are blindly biased with your own ideas.

The confirmation bias, the sunk cost fallacy, and the IKEA effect all play a part, but mostly it’s an over dose of old fashioned hubris. Or, in other words, being a jerk.

So, next time you’re in a review and the other creatives are explaining their ideas. Instead of immediately defending your own by way of finding holes in theirs. Stop and think: they may be right. This goes double if you're a CD where it's your role to manage and motivate people.

I’ve worked at an agency where after late nights and sleepless mornings and after finally cracking the brief and presenting the work to the CD; he ends up just taking his own idea to the client. There is nothing more demotivating than this.

So how do you avoid getting high on your own supply?

You could borrow Bernbach’s clever little commitment device. Or, I think, every creative in an agency should agree on what a good idea is, create a guide and then when it comes to an internal creative review the ideas get compared equally against it. (See: What makes a good (advertising) idea for a guide).This way everyone's playing on even turf, not hunches, opinions and biased knee-jerk reactions.

Or you could simply not be jerk, and in the astute words of Ice-cube: “chiggity-check yo self before you wriggity-wreck yo self!”

By Christopher Ott.