In article , dave @ stejonda
writes
In message , Drakanthus
writes
To be a true double blind experiment you should knock the nails in
while wearing a
blindfold.

you can climb a stepladder on uneven ground wearing a blindfold if you
like but...

I've climbed Leeds climbing wall wearing a blindfold.

Interesting experience, actually. Felt more like crawling along a
horizontal surface. Much less scary than doing it with my eyes open!
--
Kay Easton

Edward's earthworm page:
http://www.scarboro.demon.co.uk/edward/index.htm