Post-election disturbances-: a real concern?

Trump recruiting election observers to stop crooked Hillary from rigging the election

Just curious what people think about Trump’s rhetoric, the freaky remarks by Roger Stone on “rigged” elections, and now this. I had a long chat with a colleague about this. He thinks my fears of Trump stirring up insurrectionary violence after his (likely) loss to Hillary are wildly exaggerated, and points to the Malheur/Bundy affair, when the perps called for “patriots” to join them, but few actually did.