Why yes, yes I have heard that before

Yay! Festival season is here! For the newer followers that means that the next few weeks (and through out the summer) I'm on my own with the girls for the weekend. ... by now you've probably picked up that the opening "yay" was, in fact, laced with enough sarcasm to bring down a small water buffalo. The up side of such weekends is I get my girls all to myself. The down side is I get the girls all to myself. So far it's much easier then last year. ... they're walking and we can have some what of a deep conversation on why it's important to eat your oatmeal. Although last year they weren't mobile and I still had the upper hand in the movement category. Today I took them to my sister-in-law's soccer game and getting to and from the car was a lot like herding cattle. ... small, easily distracted cattle with selective hearing. Anyway, enough rambling; on to the subject of today's post. We stopped by Starbucks on the way to the soccer field (not a good sign when I'm exhausted by 10:30am). As we're unloading this woman with two little girls (not little like us, little like 4th and 5th grade) merges with us on the sidewalk toward the front door. "Double trouble, huh?" she asks. I give my usual response to the comment, "yup" and force a grin. She quickly follows up with "you probably hear that all the time" which is what I was just saying to myself. I laugh and nod as she kindly opens the door. In fact, I heard it 3 times last night alone when we went to sushi. ... twice from the same lady! Anyway, we're not more than 5 steps in (she's right behind me) when another lady says "Twins! Look out, double trouble." I laugh and turn around to give the lady behind me a "see" look. She starts chuckling. We get in line and as we come up to order the barista gives us a smileand a "double trouble, look out". The lady behind me bursts out laughing. As I'm waiting for life blood in white cup to be placed in to my hands I put the girls on chairs at a table and Genevieve starts pretending to read a newspaper. ... upside down. The lady comes up, still giggling, "I'm sorry, but that's got to be so annoying. I didn't literally mean you hear it all the time, but I guess you do." Yup, I inform her it's either that or "are they twins?" Just part of being a twin parent I guess. Although I've decided that I need to come up with a witty response. Something epic. Something on par with the "nose insult" scene in Roxanne. It's worth watching if you've never seen it. Any ideas? I'm not looking to be rude, necessarily, just make a repetitive situation fun.