Yep, it's true: The Mick is a shrimp. An aging one at that. Seriously, Mickey Rooney, erstwhile husband of Ava Gardener and lord knows who else (like he's had mebbe 8 - count -em - 8 wives), was in a jocular mood the night I encountered him at yet another opening I was covering in my capacity as, uh, theater critic. Hey, while "Showboat" rocked, the Mick retired early for some much-needed rest.