Absolutely, but it wasnt because of that, it was because they were mislead as to the fact that the person was an actor. It all came down to lying beforehand.

Way off subject, but does anyone else remember the experiment where they had some guy dress up as a cat in front of a baby, and then make loud noises? Dude grew up scared shitless of furry animals.

Ah well, all in the pursuit of science, I guess..