Some real gems here:

Pre-children: I was going to cloth diaper. 
Post-children: I did with my daughter, sort of, but not with my twins.

Pre-children: No TV until age of 2 and then only 30 minutes a day. 
Post-children: Ha.

Pre-children: Only organic, healthy, homemade food. 
Post-children: My kids love Wendy’s.

Pre-children: Public tantrums are unacceptable. 
Post-children: Removal of the child is only sometimes doable; predicting when a tantrum is going to strike is often impossible.

Pre-children: Complaints about childrearing and its hardships annoyed me (this was your choice, no?) and saddened me (parenthood is supposed to be a wonderful thing!). 
Post-children: Parenthood isn’t wonderful 100 percent of the time.

During a discussion on the importance of looking both ways when crossing the street, walking across parking lots, etc.

Me: That’s why it’s important to always remain vigilant.

E: Actually, I think we just need to be careful.