Social skills question: What do YOU do when a stranger coughs/sneezes all over you?

Title pretty much says it all. If you want a gross clarification keep reading; if not, just respond.

I was sitting in the bus today and a grown man sat right next to me and kept sneezing or coughing gross crap all over my arm and lap. The first time, it was disgusting and I wish I spoke up then but wasn't sure what to say. Of course, being in the bus, many other people would have heard me. After about the third time, I told him, "Excuse me, my arm is wet from your sneezing. Can you please cover your mouth better?" I felt like wiping it on him but didn't want a fight. If it matters he was of a different race than myself. (I try not to dwell on that last part other than how it influences how my response might be seen by others. I know that having a bad experience with someone from a different race can breed racism and I don't fall for that. His behavior has nothing to do with others IMO.)

How would you handle that?

Things like these can really distract me. I usually look at people really angrily and make sure they notice and that other people also notice and then go away. Sometimes I say something, too.

What I do is so passive aggressive that I don't even want to admit it -- but I spent a few months in a foreign country where it seemed that everyone just walked around coughing on me, without bothering to cover their mouths. I would cough back at them. It sure made them move away!

Too bad I didn't have to throw up.

I can't post what I would say without getting banned.

this doesn't mean that it's any less disgusting but people did a lot worse things sitting next to me in the bus than coughing.

I could just say, "bless you" after the first incident. That acknowledgement, if you will, might be enough for them to start covering their mouth/nose better.

Grossness warning:
If not, the preface of, "bless you," the first time might pave the way for a second, "bless you" followed by, "Can you please cover your mouth better? It's getting on me." That might be a respectable request.

(The trouble I have is coming up with a way to say this that will put the negative attention where it belongs, and not on me.)

It would depend if they were male or female.

Why would it matter what sex they are ?

Joe, humans have always fascinated me and equally as much, nearly driven me down a burrow of insanity.

My stepmother taught me a very good sarcastic, "Excuse You!" that I use on my husband when he belches, farts, etc. I would have used that and then maybe demanded to be let up to go sit/stand elsewhere if he didn't take care of it. I can understanding needed to sneeze a lot I do that but not without covering my mouth, turning away, apologizing, etc.