well, it does crash for me quite fast :)

testscript.rb:7: [BUG] Bus Error
ruby 1.8.6 (2007-09-24) [i686-darwin]

Abort trap

real	0m0.515s
user	0m0.029s
sys	0m0.015s


testscript.rb:7: [BUG] Segmentation fault
ruby 1.8.6 (2007-09-24) [i486-linux]

Aborted

real	0m0.141s
user	0m0.056s
sys	0m0.048s