Dean examined the offending packet. He knew from the get go there was something wrong. It wasn't just the taste, or even the smell; it was the way his stomach reacted to the first mouthful – the warning cramp that alerted him that his body already instinctively knew something bad was coming.
When he looked up he found Sam was watching him intently. He seemed oddly concerned and anxious for some reason, which was weird but, then again, dude had been acting weird all morning, so what was new?
Dean's stomach growled ominously. "These tacos taste funny to you?" he asked.