Why do I keep breaking rocker arms?

Damn. Wish I'd seen this while it was still light out. I hadn't notice those in my visual inspection (pretty cursory one I admit). Regarding the ball and cup I've been having difficulty getting a good look at what's going on down there. I think a lot of What we're seeing is distortions from globs of oil. It's very well lubed, and hardly any oil mess after a two or three minute coverless choked idle.
WOW!!! DANGER WILL ROBINSON!!! That 2nd rocker back in the last photo is almost touching the pushrod cup, the adjuster is up too high....sumting wong!!