Last week Tegan And Sara took to the Mod Club stage to serenade audiences with their acoustic folk assault. It looks like Sara (or maybe it's Tegan? No, it's definitely Sara), became suddenly preoccupied with something mid-song. Was it a crazed fan trying to roast a marshmallow during their set? Maybe it was someone singing Tegan's back-up harmonies just a little too loud. Unfortunately we'll never be sure.