I'm going on my son's all day field trip today to a nature preserve that I love. Ican't believe how nervous I am about anattack happening, getting too hungry sinceI have cut out so much food, getting thirsty, having to use the facilities etc.Any ideas for future reference? The schoolprovides mid-morning snack, this should bea hoot (does it have oil? fat? tomato sauce?cheese? air?)I'll survive. Just got to hold on until afterI run the pond experiment. Oy.