Ha Ha HA

I am a 15 year old ASPL of a BSA troop and we were on a camp out last weekend. We were getting ready to go on the day hike that we planed at the PLC. One of the scouts decided that he was not going to go. We (the boy leaders)told him that he had to go. When he refused, we went and got the adults. The scout still refused to the adults and the rest of the troop went on the hike. The SPL and I are now trying to find a good punishment for our disobediant scout. Any ideas?