My first friend was Woolio in AC on GC.
He wasn't in the town from the beginning, he moved in after a couple of days, and I loved him from the very first second.
I guess I digged his purple wool, sunglasses and a star on his cheek that to me looked like a tattoo at that time.
He also had a steel floor and played K.K. Ska.
After being best friends for a few months he told me he wanted to move out, but I didn't realize what he said because I translated it wrong, and managed to say it was ok that he left.
I tried hard for several days to get him to ask me again, but he never did, and eventually he moved...
...Then I found out Nintrndo decided to not include him in ACNL.
So to me, he moved out forever.