Hector

hector \HEK-tur\, noun:
1. A bully.

transitive verb:
1. To intimidate or harass in a blustering way; to bully.

intransitive verb:
1. To play the bully; to bluster.

At both ends of the escalators, attendants . . . hector and berate any passenger who steps out of line.
-- Jeffrey Tayler, "A Means of Transport", The Atlantic, February 1998