I was joking, they seem to dither just incase you are going to do something interesting (like drop food).
Mine isn’t interested in Bikes, however he is interested in hunting squirrels, so he might/will ignore you, which could mean that you have to go around him, however that’s what your handlebars are for.
You wouldn’t ram a walker/runner/tree/car just because its in your path, so I am not sure why some people think its OK to ram a dog.