how would you tell them to knock it off, tell them to slow down? If someone told me "stop drafting me" I wouldn't draft them, would try to pass, but would definitely think they are a weirdo. if you don't like someone drafting you then slow down or drop them. in the future OP should pass people fast enough that they can't hop onto his wheel. Places like amsterdam where everyone commutes drafting is normal. There are roads near me with tons of cyclists and drafting there is also totally normal. Sometimes you are tired from catching up to someone and want a little breather before moving on to avoid playing leapfrog, which I don't mind doing but is probably more annoying to most people than a wheel sucker.