That's my story too. Now, I often have my iBook in my lap while I'm sitting in the recliner and eating.It's funny, because when I first got my white macbook I would NEVER eat near it, and I would always thoroughly wash my hands/lower arms before use...yeah that lasted for about a month.
Now that I have the macbook pro I have refrained from eating around it, but I'm sure that too will pass. I guess it's just the idea of having a new computer and not wanting to mess it up while its relatively new.