GOAT weird shit.
People will tell you they started to suck after the 80s, but fuck those people. Their worst album is pic-related and it isn't terrible, just boring compared to when they were pushing every envelope sonically and distastefully.
But if you want a good mix of what they have to offer, their "rarities" collected Humpty Dumpty LSD is perfect. It has some early experiments that became songs on other albums, some pre-debut punk songs that are more punk than half the hardcore shit coming out of Texas at the time, some flat-out bizarre b-sides and a badass Roky Ericsson cover.