If don't want to add the method just locally, you can remove it using undef *Class::method;. Here's an example: 
my $foo = Foo->new;

*Foo::bar = sub { print "bar\n"; };

$foo->bar();

undef *Foo::bar;

$foo->bar();

package Foo;

sub new { return bless {}, shift; }

1;

[download]
output: 
bar
Can't locate object method "bar" via package "Foo" at foo.pl line 9.

[download]

In reply to Re: adding temporary method to a class by duckyd
in thread adding temporary method to a class by jeteve

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