It's the same thing, bread isn't conductive enough to shock you that's why it's ok to put bread in the toaster. Don't put pieces of metal shaped like bread in the toaster, don't put conductive things in the toaster like the piece of bread you just dredged in salt water.

>There's no obvious danger caused by putting bread in the toaster and not immediately starting it.

I don't get this. Is it an argument against the automatic toaster? Or are you advising me to keep my toaster unplugged until I'm ready to toast my bread because a toaster can be unreliable?