I loved Barney when I was a toddler, but as I got older, I started to hate him.
And also, on a related note, I remember kids at my elmentary school (mostly the boys) loved to sing anti-Barney rhymes. Here's an example of one:
"I hate you
You hate me
Let's team up and kill Barney!
With a shotgun, BANG BANG!
Barney on the floor
No more purple dinosaur!"