Are we sure the medal has actually been kidnapped? I mean how do we know it has not just run away? Let"s look at this from the medals point of view.
You are one of 5 silver medals who are given to people to be looked after. Three of the new owners immediately take their medals home to keep them safe and warm. One other person proudly shows his new medal to a few people before taking ti back to the hotel room where it will be safe. What does your new owner do?
Heads straight to the nearest bar and down some unknown number of pints and other scary substances that most normal people have never even heard of, clearly he is a bad person, whilst giving you to somebody else to look after. Said other person then loses you after putting you through the above trauma mentioned by Nellie, and you are rescued by a nice person who looks after you for the rest of the weekend without ever losing you!
What would you do if you were the medal? I think the medal is just pretending to have been kidnapped whilst in reality sitting there thinking how good it runs.