Well, probably anyone that's mechanically savvy. I don't really know everyone's skill sets that well but...

[ he gulps, looking a little pale as he comes to a somewhat scary realization. ]

I know some stuff about robotics. Probably Saphir does as well, if he has come into contact with any mechanical SCPs during his time here. [ he pauses, clearly a bit more nervous now. ] But really, if there was no resistance, then it really could have been anyone silver tongued enough to convince her to show how to turn her off.