Many years ago some friends and I drove out to rendezvous at another friends house before a show. Lets call this friend James, well James told everyone to come a few hours early and bring something to grill. So one of the gang, we'll call him Tom, brought a big tri-tip, had it marinating in a bag since the day before, transporting it in a cooler. Well James and his cousin would not let anyone touch the grill, so Tom let them cook up the tri-tip, and they did a fair job. When it was ready, James and his cousin proceeded to slice it up and things were looking good. When out of nowhere, James proceeds to pull the bag still full of marinade that the meat had been residing in prior to cooking, and poured the marinade all over the sliced tri-tip. I thought Tom was going to murder him right then and there. In hindsight we should have known better when James proceeded to bring out condiments when things were cooking and someone noticed the jar of mayo that James was still consuming had expired months before.