Shower Sandwiches...what's the deal?

I love shower sandwiches. I think a lot of people do. I wonder if it has anything to do with being a kid, watching your Mom make awesome sandwiches to take to someone else's house?...boo!!! Funny, what you remember. My husband loves shower sandwiches too and is usually buzzing around the kitchen (coincidentally) every time I make them. He always says he has to make sure they are good enough for the guests. Someone has to do it!!!! Also, if I attend a shower he wants to know if I had any of these little darlings & better yet, did I put any in my purse to bring home to him? Every once in a bit I make him a "shower sandwich" as a treat...lol