so, I saw this on youtube.
http://www.youtube.com/watch?v=3cfz4GEj ... re=channel
where can I find a padlock like this, and are they expensive? I'd like to add it on a pandora's box-esq style challenge as an extra stress on the picker. I could also see using this in something like the gringo challenge. Not only is it stressful, but I could add in a guard response time for possible failure.