A sandwich? I never heard of such a thing. Are they anything like subs or heroes? The names given to the same thing throughout the country can be mystifying at times, especially if one has never lived in the region. But, the odd thing is, that I lived on Long Island until I was 21 and never, ever came across a sandwich called a grinder; nor during my 2 years at SUNY Albany did I ever, either. Strange. Thanks for enlightening me. Ron