The heel of the bread, otherwise known as the yuck. Is the period at the end of the scentence, it is a dead-end, its a disconnect tone when someone hangs up. It's the flat line of food.

And a horrible, horrible lie.

And maybe just tell them Santa isn't real as soon as they learn to talk. That's disappointing, too.

Tell them they're adopted even if they're not, another suitable lie.

A peanut butter sandwich can gain you a lifetime of trust. But the heel of the bread might loose it forever.

Don't risk it.