The organist at one of the parishes that I serve brings a dog with her onto the organ loft. The dog is silent for most of the Mass, but usually begins to howl for the recessional hymn. It howls almost in tune, so that it seems to be trying to join in the singing. Large grins appear on the faces of the congregated faithful whenever the dog is heard. At Christmas the dog’s howls remind me of the responsory O Magnum Mysterium:
O magnum mysterium, et admirabile sacramentum, ut animalia viderent Dominum natum, jacentem in praesepio!