Share 'Is there a Protocol'

On Saturday I was heading down Beach Road back to the city with the wind blowing stright into my face when a guy cuaght up to me and sat in my slip stream most of the way down Beach Road and it seemed to be a bit of a bludge. Is there any protocol that says he should of taken his turn to help and should I have politley asked him to take his turn and help out? I was just on a return trip from Morn…