Sherlock Holmes: 60 for 60

Hm. I suppose Watson should have been educated as to what the snake looked like even if they weren't all that common a find in reality. Still, I must say that it is much more difficult to understand what you are looking at when you aren't expecting to see what you are looking at. That's just me speaking as someone who takes a while to catch on to things... :-) I'm firmly a Watson, apparently.