if u can sympathize with and tolerate bicyclists, i'm sure u can do the same for them.
I don't have to tolerate bicyclists, at least not those who're considerate, courteous and safety conscious; they bother nobody. Of course, there're those who're inconsiderate, rude and reckless. Idiots are idiots whether riding bicycles or not, or riding or driving anything else.
Knocking on people's door invited is instant nuisance, unless postman, courier, police or other authority on proper business. Another case maybe neighbour in emergency trouble, calling for help.