He "appeared" to have been tempted back into crime, and reduced to a state of stuttering nervousness by the situation.
en.wikipedia.org Sufferers typically report fear that they would fail to respond appropriately in a telephone conversation, and fear finding nothing to say, which would end in embarrassing silence, stammering, or stuttering.
en.wikipedia.org In this theory, stuttering was attributed to imbalances of the four bodily humorsyellow bile, blood, black bile, and phlegm.
en.wikipedia.org Stutterers often find that their stuttering fluctuates and that they have good days, bad days and stutter-free days.
en.wikipedia.org His reactions are shown as him blushing, temperature rising, and constant stuttering.
en.wikipedia.org