The least of which consequences (in the case of ignorance) would be, I suppose, something like an absence of efficacy in the sacrament (though who is to say what Christ will produce in a soul who comes in contact with Him, however casually or offhandedly); and the greatest of which consequences (in the case of irreverence or sacrilege) would involve an offense against God that can do only injury to the soul who has decided to perpetrate it.