I wonder if the trick is to just send so many things that memory wraps around to a place where the key is exposed.
Had bleed running in a while loop with no sleep and ab running on a loop as well sending connections to the server hoping to get the mem jostled around enough to cause something like that you described.
I was unsuccessful as of 9:30AM... now I'm really curious to get home and see if I actually caught it... even though I already missed the $10k boat :(