Question: redefining before and after methods in CLOS?

[osiris@cs.utexas.edu (Rob Browning)]

Is there a way to redefine before and after methods for a class in CLOS
without quitting and restarting the program?  From what I can tell, if you
re-evaluate a definition of a before or after method it is added to the
list of before or after methods for the class.

I would be satisfied to be able to either clear all the existing before and
after methods of a given name from a class or to redefine them.

--Thanks.