On the use and meaning of "Mad Dog' Bertie Russell in Against the Day: Up society's ass, Copper!

[Mark Kohut]

We discussed how the slang phrase meant that one was actually a "sane"
resister---called a Mad Dog because of society's repressions-- during the
Group Read, so long ago, I believe.

Not sure if we gave examples. But here the epithet appears from the end of
Portnoy's Complaint, 1969, trailing one famous phrase
from the book:

Portnoy fantasizes, full of all his guilt, for his sins, real and imagined,
including ripping the Do Not Remove Under Penalty of
Law tag on his mattress: "This is the police speaking. You're surrounded,
Portnoy. You better come on out and pay your debt
to society." "Up society's ass, Cooper!" "Three to come out with those
hands of yours up in the air, Mad Dog, or else we come in
after you, guns blazing.