Hiya!
Yeah, a fly, being captured and taken into a spiders lair deep inside a crack in the floor could end rather..."graphically" for the druid
Oh, and I still don't get the whole "Polymorph is broken" thing.

You keep your personality and alignment...but that's it. Polymorphing into a low-int and/or low-wisdom critter is dangerous (e.g., you poly into a T-rex, Int 2; good luck trying to remember anything specific, or even general, after you come out of it; "What did I see?" ...DM: "I don't know, make an Int check at -4, DC 10"..."Er, 7"...DM: "Well, you remember chewing into the icky tasting monster, and a bunch of two-legs running around, you liked them, and you remember the flashy lights that scared you"..."So I don't remember seeing the wizard fall down the cliff?" ...DM: "Nope, 'fraid not'.

).