There are two types of people in this world...

[MrScorpio]

1. Those that may or may not place other people into arbitrarily determined groups…

2. Those people who may or may not belong inside of such groups.

[Madam Mossfern]

1. Is this a test

or a joke?

[Wolf Frankula]

2. There are two kinds of people in this world

Those who divide people into two kinds of people, and those who don't.

Wolf

[struggle4progress]

3. You forgot about the group of people who can't be put in any group of people

[Boom Sound 416]

4. ...

[MicaelS]

5. There are two types of people in this world.

1. Those that make lists about people.

2. Everyone else.

[lastlib]

6. It's been said that there are actually ten types of people in the world--...

...those who understand binary and those who don't..

[edbermac]

7. I would never belong to any group that would have me as a member.

[kwassa]

8. There are three types of people in this world.

Those that are good at math, and those that aren't.

[RedCloud]

9. Great! Just when I corner the market on Group Peas

Now I may not have anywhere to sell them.