You deserve the foreign matter that inevitably makes its way into your food the second or third time you eat in a restaurant after stiffing some poor slob that made $2.00 an hour (before taxes are withheld on $8 an hour), you cheap ........ Why should they make it obvious by degrading your service, when they obtain $6 worth of satisfaction using boogers for condiments on your cheeseburger and watching you eat it so smugly.

I can understand that some would prefer to see restaurant prices rise by 15-20% to enable restaurants to pay salaries and ditch the tip system. I believe the system could be changed by owners who wish to operate that way, although it may be too ingrained in the culture for it to take off and replace the tip system in every restaurant in the US. However, I cannot see what justifies your actions except that you must be extremely cheap and disrespectful of others.