I recently dropped off two perfect diamonds and several low level runes for
my gem/rune mule.  When I brought in the mule the runes were gone and one of
the diamonds was gone too.  Game was passworded.  No big loss but I suppose
b-net was hungry.

Yesterday I was questing through act 2 hell with my concentrate barb.
Several times I tried to reach unravelers with Leap Attack but couldn't get
off the ground.  At first I wrote it off as lag or slow hit recovery but
when it kept happening I TPed back to town and walked out the gates and
tried out my skills.  Warcrys all worked fine.  Leap worked fine.  Leap
Attack was a no go.  No matter how I switched skills I couldn't get into the
air with LA.
I then left the game and rejoined.  Went outside and LA worked flawlessly.
Strange.