Sam started to laugh at the bag. "That is funny like that could ever happen," he said as he reached in and grabbed one and took a bit of it. Just then he felt a sharp pain in his legs. He looked down and they seemed to loose all bone structure and fuse together into a long tail. The pain was excruciating. Fine scales formed over this tail and once the pain stopped he stared at it and the cracker in his hand in disbelief. He dropped the cobra cracker in his hand and grabbed the bag off the table in front of him. He searched through the bag and found the human one in moments and then quickly ate it whole. The moment he swallowed it the pain returned this time less intense but still terrible as his legs returned to normal.
"Ok that was messed up," He said as he heard something fall into the bag. He looked and pulled out a new human cracker. "I wonder..." he said thinking for a moment.