[ogf-d20-l] Creatures lacking stats

[Geoffrey McVey]

Hello,

This is more of a D&D question, but since I'm assuming that the monster 
guidelines from the MM are going to be included in the SRD, I hope it's on 
topic.  In the MM section on attributes, the rules mention that a creature 
without a Constitution score always fails Con checks.  Does this mean, say, 
that nudging a lich will *always* cause it to lose a spell (i.e., fail its 
Concentration roll)?  Can anyone think of circumstances in which a Con-less 
creature would need to make a Con check, where it would make sense for that 
check to fail automatically?  The only examples I can think of have to do 
with fatigue, holding one's breath, and so on -- none of which really seem 
to apply to undead.

Any ideas?

-Geoffrey