I was discussing a certain road driving conditions with a friend. I said: You shouldn't be driving faster than 50 mph on that road!
I didn't mean him or anybody in particular. I meant anybody driving on that road.
His reaction was: why are you telling that to me? I never drive 50 mph on that road.
How can I explain him that he misunderstood me, without saying 'no, no, I didn't mean you'?
Assume that I am talking to an educated person.