Bandersnatchii can't be frightened. Instead they become "frumious", increasing their speed to 36 and their damage by 2x.A player polymorphed into a bandersnatch can pound with the #monster command.
But while he was seeking with thimbles and care,
A Bandersnatch swiftly drew nigh
And grabbed at the Banker, who shrieked in despair,
For he knew it was useless to fly.
He offered large discount—he offered a check
(Drawn "to bearer") for seven-pounds-ten:
But the Bandersnatch merely extended its neck
And grabbed at the Banker again.
Without rest or pause—while those frumious jaws
Went savagely snapping around—
He skipped and he hopped, and he floundered and flopped,
Till fainting he fell to the ground.
The Bandersnatch fled as the others appeared
Led on by that fear-stricken yell:
And the Bellman remarked "It is just as I feared!"
And solemnly tolled on his bell.