Yoga...inverted

Heather and I checked out the yoga studio a couple of blocks from our houses last night. The room was awesome...we both agreed we'd like to just have it for an apartment, nice architecture. So we went through class and it was all good until our very nice instructor told us to go ahead and make a bridge...you know, like the kind you did when you were 10. Your hands and feet on the ground and your stomach in the air, head hanging upside down. Heather and I just looked at each other, giggled (yes, in the middle of yoga) and said YEAH RIGHT...so we just relaxed on our pillows and waited for the yoga junkies to come down off their bridge.