killing speakup on keyboard without a printscreen or sysrq key

[Cheryl Ann Homiak]

i'm running Arch Linux on my Mac mini in vmware fusion. While I can stop 
speech so that I get "you turned me off" I didnt think I could actually 
kill speakup with a bluetooth keyboard that doesn't have a dedicated sysrq 
key as far as I know. However I have a new iogear 
multi-link mini bluetooth keyboard and I just accidentally started to sit 
on it and pressed some keys apparently and I heard "You killed 
speakup" which  sure enough I had done. But I can't figure out 
what key combination did it and I'd like to know. Any ideas?

-- 
Cheryl

May the words of my mouth
and the meditation of my heart
be acceptable to You,
Lord, my rock and my Redeemer.
(Psalm 19:14, HCSB)