Humor is one of the most effective methods of communicating a message, but in the art world it's often overlooked or dismissed. Occasionally we see someone just nail it, driving home that the two can be attractive and beneficial bedmates, like at the MAC's recent William Powhida exhibition. Powhida distills the residual spite from his former career as an art critic and titrates it through punchy, colorful lists and Mad Magazine-style renderings. It results in something that doesn't take itself too seriously but still delivers a message. I stumbled into something similar at two different gallery openings on Saturday. That's where Texas artists Gary Sweeney and Clay Stinnett proved that art doesn't need to be stuffy.