Fffff, I hope you don't mind me getting a little specific. ;;

1. Yes to both for killerbaseball, madeitsquare and zach_is_with_me. As for docfoul, since he is kind of... nearly omnipotent, the stuff he marks as locked is 100% unhackable. óuò

2. Just as above, absolutely for the first three (though they are bound to notice them eventually and Shelly in particular will try to get rid of them), and Soundwave's free to try and do the same with Doc Scratch, although since he is also nearly omniscient, he will invariably notice and destroy them.