I had an odd experience while having lunch at Gordon Biersch yesterday. After we ordered, and we were waiting for our food, I was playing with my silverware (I know, bad habit). While I was moving it around on the table I noticed that the knife would pull the fork with it whenever I moved it. I picked up each piece and separated them, thinking that they had something sticky on them which was keeping them together. After seeing that they were clean I put them back on the table and started pulling the fork around the table with the knife. I showed my lunch companions and they tried it with their flatware, but it didn't work for them using their utensils. We got a kick out of playing with it until the food arrived, at which point we just ate lunch. I did eat with the utensils during lunch.
There's probably a simple explanation for what caused my knife to become a magnet, but I'm not science savvy enough to know the answer.
Has this ever happened to any other Chowhounders? Any idea what caused it? Was it somehow dangerous or unhealthy to eat with the utensils? Should I have mentioned it to the waiter?