What "Two Things" Did Mona NOT Do as "A" to our Pretty Little Liars?

What "Two Things" Did Mona NOT Do as "A" to our Pretty Little Liars?

Pretty Little Liars creator and showrunner, Marlene King can be full of surprises, some we never see coming (and some we may have, like Mona Vanderwaal being "A" after all). But she threw out a recent bombshell via Twitter that may possibly hint at Mona's whole "A" game being larger than just herself:

"A/Mona did all but two things that were done to the PLLs. Guess what those 2 things were? And who did them?"

Now, Marlene was quick to lump the identity of "A" and Mona's name together, surely implying that whoever did do these two things to the girls wasn't doing them as "A". But who else would have reason and motive, and maybe the more important question is, are they really disconnected from the bigger mystery at hand? I don't think so. What do you think?

Hit the comments and discuss which two things in the past couple seasons you think weren't delivered to the PLLs by the hand of Mona.