To ask you to not hum along to Art Garfunkel.
I went to see Art at the London Palladium. I get it's not everyone's cup of tea but I think he's a poet and his lyrics and voice mean a huge amount to me - partly due to my beautiful dearly departed (far too early) late sister.
Up in the stalls it was only 3/4 full - I had loads of space around me -I know all the lyrics but don't sing them out loud as no one wants to hear me - they want to hear him.
After the interval a woman who was on her own and had been sitting three seats away came and plonked herself right next to me. I wasn't too troubled - thought she just wanted to be close to another human - his words were very soulful but then she proceeded to hum and sing all the way through the second part. Grrrrrrrr... I didn't come here to hear you I came here to hear him.
Fine if we're all yelling along with Led Zeppelin but otherwise STFU.