I don't think she cares. I remember a few years ago, when the Normal, IL show was rained out, all of the corps did a standstill inside a fieldhouse (or something like that). Off to the side of the bleachers, she ran a sectional with her guard. No problem, right?
....Except that she kept time for them with a drumstick and block, even when other corps were playing for the crowd. I understand making the most of your time, but I didn't think that was what I'd call classy.