> Very few people in the US are going to admire a principled stance you take against tipping. It depends what your principles are. Only in very rare cases do I

> Very few people in the US are going to admire a principled stance you take against tipping. It depends what your principles are. Only in very rare cases do I tip less than 20% in traditional tip settings (restaurants and bars). But this iPad tipping is young enough that 1) you're not a jerk for not doing it and 2) we as a society have a very reasonable chance of winning this war.