I came across a page that outlines some of the oddities in the 3.0 rule set. For some of you that didn’t get on the 3.0 bandwagon and skipped right to 3.5, some of the jokes may not make much sense (3.5 got a pretty good make-over to fix odd inconsistencies).
Here’s the sort of thing that you can enjoy:
“We don’t need thumbs here in the Abyss”
By the MM errata, all outsiders with an Int of 6 or higher are proficient with all martial weapons. This includes Hellhounds, Howlers, and Nightmares, among other quadrapeds.