A Haunting from Ancient Mii's Past - General Discussion

Over Thanksgiving I was at my wifes parent's house. She has a little sister about 10 and to help give us something to pass the time I dug out my Wii from storage. It had been several years since using it so I plugged it up, did a system update, put in Wii Sports, and walked away. I go out Thursday night to do some shopping and come back to find my wife playing Tennis against my ex-girlfriends Mii from 4 years earlier, needless to say she wasn't very happy about this. We then deleted the Mii and had a good laugh about it but this got me thinking, there are lots of people like me who have had Wii's for a long time and have probably not used them in forever , and if your experience was like mine, the first time anyone set down infront of a Wii they wanted to make their own Mii and you never though about it again. Haven't not played it in so long, seeing all of the Mii's still sitting on the system is kind of like finding a old mixed CD from several years ago and going "Wow, I can't believe I used to listen to this." Has anyone else ever been haunted by an Old Mii, High Score, or custom game character years after the fact?