So I was thinking that since Wheatley turned GLaDOS into a potato battery, does it mean he could've done to other cores that refused to obey him if there were any? :
GLaDOS Quote Potato by nathanr2013 on DeviantArt | Games for girls, Game character, Aperture science
Pokemon GLaDOS Potato Battery
Potato GLaDOS" Poster for Sale by JoshPointOh | Redbubble