Let's ban spitting

There's one filthy habit that I really can't stand and that's spitting. I think anyone who is caught doing this should be fined several hundred pounds and made to scrub the pavements within a mile of the offending mess with a nail brush, every day for a week. Perhaps this is the punishment that would stop them from ever doing it again!
After all, people have to pick up their dog's mess and I think 'spitters' should clear up their mess too.
This morning I had to make a quick trip into the centre where I saw at least four people, all men I may add, spitting on the ground. Not only that, you have to watch where you put your feet in order to avoid the offending gobby splodges and messes. I also have to be very careful where I wheel my shopping trolley too because that's the last thing I want to bring home with me.
Years ago spitting was discouraged because TB was rife and in this city we have a very large immigrant population and quite a few have open TB when they arrive. Unfortunately, etiquette and good manners are rarely taught in homes anymore and you only have to watch a football match or any other sport where you can see sportsmen gobbing and spitting everywhere. These people are the (overpaid, overrated) 'heroes' and role models of the impressionable young so is it any wonder that the youngsters pick up these revolting habits and continue them throughout their lives?
There is absolutely no need for anyone to spit because if you have saliva in your mouth, you swallow it, a natural reflex. If you need to expectorate sputum then you should be carrying tissues to collect it in and then disposing of it. Better still, if you are coughing up anything at all you should be seeing a doctor and not out near other people spreading your germs. Some of the stuff I've seen on pavements has obviously come from very sick people, I should know, I saw enough of the stuff when I was nursing.