We play YOUR :) 24/7 Christmas music NONSTOP at work (because we sell Christmas items). I feel your pain on my 10 hour days. Dominick the Donkey is infrequent...but...there are a couple (Dolly Parton and Mariah Carey come to mind) where the warble is so annoying that we want to throw something at the speakers (after the third or fourth play of the day).
And since venting cheers me up...that Christmas Shoe song...talk about a Happy Holiday buzzkill :p taking two happy things (Christmas and shoe shopping!) and ending up making the listener cry. Bah humbug!