lita-crazycaps is a terrible handler for Lita that should never be used unless you want to annoy everyone at all times. If you're enough of a fool to want to garner ill will from your fellow chatters, then this will take a phrase and randomly alternate its characters' capitalization so it comes out looking like garbage.
Add lita-crazycaps to your Lita instance's Gemfile:
To make your phrase's capitalization crazy:
[You] Lita crazycaps "This is intelligible text right here, yo" [Lita] "tHIs Is inTeLliGIblE TExT RigHt HeRe, yO"