I don't think it passes over to others...<quoted text>
I was in a restaurant a couple months back and a family prayed over their meal.(I have no problem with that, btw.) Your post just got me to wondering - would the blessed bottles of Heinz 57(r) and Tabasco(r) left on the table then be defiled by Muslims and atheists who ate at that table later? How should the wait staff have properly disposed of it, then? Would it be considered a hazmat to Catholics, mummies and vampires?
Or... we'd bless all the food in the world, and not have to say it every time!
"have to say" not the proper term, as we Give thanks for ALL we have!