It looks like my problem is a common one. Soft-mod to play games through HDD using USB loader as a channel. Nephew comes over and in less than 5 minutes has a full-brick!
After soft-mod is done using Krank's guide for FAT 32 drives, is there anything that could or should be removed from Homebrew etc. besides setting it to never update for discs or by Ninty?
Thank you. StreamlineHD was able to undo my full-brick in less than a week turn-around... now looking for help to prevent it. You guys are awesome by the way. Thanks so much!
Install Priiloader, block online & disc updates. You can setup priiloader to autoboot into your usb loader. Also return to=autoboot so they can't exit the usb loader. Depending what usb loader you are using you can set a parental pass so the kids don't delete any games or mess with the loader settings.
You might find some other ideas here
after you do what the above user stated, delete all the homebrew on the sd card that even touch the ios's etc.
also, if they somehow get the the wii menu, put all the channels that you don't want them to touch as far right as possible
LOL I had to parent-proof my hacked wii