Malleus was busy trolling the bureaucrat's noticeboard, and Rodhullandemu (T-C-L-K-R-D)
did not like this, so started threatening and attacking him on his talk page. Well, Malleus being Malleus answered the admin back and got a block from Rod... for doing the exact same thing Rod did. Moni3, Malleus's admin meatpuppet, unblocked him, and Floquenbeam blocked Rod. Who then retired for a day before returning.
There's a request for arbitration open, but it looks like it won't be happening. It's all very lulzy!
Ongoing AN discussion here, and arbitration request here.