The stage is no bigger than a postage stamp, and the audience will throw things at the actors any chance they get. That’s just the way they like it at Old West Melodrama, an outfit that brings interactive silliness to Puffabelly’s Restaurant out in Spring. The show this summer is called The Great Oil Scam of Sulfur Flats, and it tells what happens when two villains try to scam two old ladies out of the oil rights on their property. With cowboys and Indians dressed like they just rode in from the 1950s and characters with names like Slick Rascal and Tank Trueheart, no stereotype is off-limits, and the audience is encouraged to interrupt the story and get the actors ad-libbing their way back to the narrative. It’s a family-friendly and hooting good time in these long summer nights. 8 p.m. Fridays and Saturdays through August 28; 3 p.m. August 29. 100 Main Street in Spring. For information, call 713-364-9190 or visit www.oldwestmelodrama.com. $11to $17.

Fridays, Saturdays. Starts: Aug. 5. Continues through Aug. 27, 2011