You do not have to say anything. But it may harm your defence if you do not mention when posting something which you later rely on in quote. Anything you do say may be ripped to sh*t.
When i first saw the headline, i thought it were gunna be in a box, roflmfao And the googles, love the bit were the dog taps his arm for toilet stops pmsl
Met an old guy a few weeks back at my local bike shop who doe's the same thing.
He has a 13 year old jack russel he takes everywhere with him on his VStrom. He has a Bagster tank bag specifically designed for the dog that zips round her. She seemed very happy