or download this
# The sort of result that was no doubt expected:
$ perl -e 'use Data::Dumper; my $hr = bless {a=>1}, "H::R"; my $r = $h
+r; print Dumper $r'
...
$ perl -e 'use strict; use Data::Dumper; my $hr = bless {a=>1}, "H::R"
+; my $r = "$hr\n"; print Dumper %$r'
Can't use string ("H::R=HASH(0x800003b78)
") as a HASH ref while "strict refs" in use at -e line 1.