Priming sequence - RCBS Universal Hand Priming tool in right hand, tray attached, all primers correctly anvil side up. Pick up brass with left hand, visually verify the primer pocket is empty, turn head, visually verify primer anvil is visible inside the channel in the priming tool. Insert case, squeeze action bar, remove case, visual inspect primer is in correctly, wobble test on flat surface to ensure full seat, then place primed brass in baggie or loading tray. I haven't had a sideways one yet.
Of course, now that I rattled that off all glib like I'll merrily crunch one in sideways on Tuesday...