Foul play

[Android]

Ok, so I logged off a while ago in my hidden place for all of my valuables. I get back on, at first having difficulties, but eventually get on. I look at my screen and I am in the middle of a five by five lava pool, I'm on a one square of dirt, I have three hearts left, no items, in the middle of no where. Let me also say that this person knew where exactly where I was when I left, so it was all placed perfectly. Last but not least, there was a sign saying "I know it was you, don't mess with me". I suspect some major foul play going on. I know for a fact nobody knew where I was and even if they had stumbled upon the entrance, how the heck did they know exactly where I was going to appear when I re-logged? If what nfmous was doing before counted as abuse of OP, then this FOR SURE counts as abuse. I have no idea who it is but it has to be somebody on the staff. No other could do this.

EDIT
Might I also add that I was able to log on once. None of my chat messages were going through so I tried to re-log, since then, I couldn't log on.