in reply to How to kill perl?

Kill Perl Golf:
$ perl -e '/(?{<})/' panic: top_env
If you swap the less then sign, it's just a syntax error:
$ perl -e '/(?{>})/' syntax error at (re_eval 1) line 1, near ">" Compilation failed in regexp at -e line 1.
(Reason: anything that might be the start of a quoted construct inside (?{}), but isn't followed by one panics perl. (?{'}), (?{"}), (?{`}), (?{<}), (?{/}), (?{?}), (?{q}), (?{m}) and (?{s}) all panic perl. Other single charactes seem to do ok (although I didn't check all of them).
Perl --((8:>*