Board Thread:Game Discussion/@comment-13282344-20130912224059/@comment-11490363-20130913230659

Highly unusual yes. 1 in 10000 (assuming my base 1% boss cap rate guess is correct) of all the people making 2 runs.

Given that there are a few (say 2) thousand people each doing dozens of runs (say 24), that would mean we should expect to see around 9.6 such events total per episode.