Urinating sure sounds to be a somewhat humiliating experience. Won't be easy to get volunteers.
Also, it greatly depends on their a priori conditions. If someone was drinking water all day, has more chance, while someone suffering dehydration won't.
It seems better to me to use the other features - crying/sobbing, for example (most people are capable of that, and in any time of day).
Laughter is also a nice one, but personally I'd be tempted to laugh on my own if i had to be in front of a 'psychic', wearing black glasses and knowing she's concentrating on me
30 min does sound too long to me also. According to teaching experiences, hard to sit for so long silently
(But she won't show up, will she? Still, i'm eeevil, but i suddenly envisioned an old respected prof peeing in his pants, shown on tv... worth a million bucks
)
Also, it greatly depends on their a priori conditions. If someone was drinking water all day, has more chance, while someone suffering dehydration won't.
It seems better to me to use the other features - crying/sobbing, for example (most people are capable of that, and in any time of day).
Laughter is also a nice one, but personally I'd be tempted to laugh on my own if i had to be in front of a 'psychic', wearing black glasses and knowing she's concentrating on me
30 min does sound too long to me also. According to teaching experiences, hard to sit for so long silently
(But she won't show up, will she? Still, i'm eeevil, but i suddenly envisioned an old respected prof peeing in his pants, shown on tv... worth a million bucks