The introvert in me would like to have one quiet day at gymnastics without other parents trying to talk to me. Is that terrible?
Headphones on even if you aren't listening to your iPod/iPad/iPhone - RAPatton
Failing that go with the full football helmet. If anyone asks say you're deathly terrified of concussion syndrome. - Steve C, Team Marina
wear a disposable surgical mask for part of the time you're there. that should get them to back off a bit. - Big Joe Silenced