I'm good friends with more than a few actors who frequently perform at the Circa '21 Dinner Playhouse, and I'm occasionally asked if my ties to them - and to the venue itself - skew my opinions about Circa '21 productions. I'd like to think they don't ... but then I'll be confronted with a production such as The Elves & the Shoemaker. I had a blast at the theatre's new family musical, yet I'm forced to address a nagging issue: Did I enjoy it because it's good, or did I enjoy it because the act of watching my pals doing goofy-ass shtick in goofy-ass costumes makes me unaccountably happy?