[onewhippedpuppy]

Sounds like you are trying to justify being a dick to your coworker, in addition to your outwardly smug attitude in regards to not having kids.

I have friends with kids, and friends without kids. I have friends with kids that really should be without kids. I respect the introspection of someone that realizes that they aren't parent material. But you do realize that you are projecting an equally bad attitude regarding your choice to NOT have kids, right? Two wrongs don't make a right.