Yep. My least secure password is the one I use at work because I'm restricted to 9-12 characters, can't be sequential forwards or backwards including keys next to each other (abc, 123, qwerty), can't begin with a number, must contain at least three numbers, must be at least four characters different from your last twelve passwords, and must be changed every 90 days. Oh and it can't include your first or last name.

Most of my coworkers just use a family members name and then change a few numbers at the end and keep a post it note at their desk with the numbers so they don't forget it.