You'll only be making that mistake once, did the same once when recording some vocals, the singer wasn't too impressed.

 

 

And how can anything be more important then the performance? World War III would have to feck off and wait if we were in the middle of recording a tune

one advantage of me having a sound proof studio, i can't hear nothing

 

Even if it wasn't sound proof, with the 2k PA system i still wouldn't be able to hear nuttin

The best thing to do is not answer it and if they start giving u [censored] just say "i was doing a mix CD for fucks sake!".Thats wot i'd do anyway.