Raffle

My customers´ partner hold another raffle - I´m working on a B2E-project.
The prize is not toooo thrilling - a reading from a not so famous performer, subject: happiness.

Unluckiky it was my job to call the winners - five times two cards for the reading.

Only two winners were really happy when I told them. Three took it like, nahhh, ok - one of the three said he´ll try to give the cards to his parents.
One of the to-be winners said openly he has no interest and another claimed someone else took part in his name (I don´t think so).

Why do these poeple take part at all?????
It´s frustrating! (I am having a morning break right now, that´s why I can blog).