So in this week's finale of Pretty Little Liars, we found out who A is.
It's some dude called Charles.
But... who the hell is Charles? We've never seen him before.
And how can we be sure that he's *actually* A?
Remember when we were sure Mona was the only A?
And remember when we believed without a doubt that Ezra was A?
Um, also for a while there we all thought that Toby was A.
So really, we can't actually be sure of anything at all.
