Oh yes ... glass fronted display cases ... a wild python is one thing ... one of these suckers is something else indeed!

The Taipans used to reputedly to have the fastest repeated strike in the world. Not sure if that stands now.
There seems to be debate over whether the Diamond Back Rattler, the Puff Adder or Saw Scaled Adder, or the Death Adder (another Aussie model) has the fastest single strike. Far as I know the Death Adder does but it's hard to know who or what to believe.