Tips on tipping

I've never worked out tipping in Spain. Or rather, I have. Usually though I'm with Northern Europeans, and I wouldn't want them to think I learned my economics in the austerity-strapped and vindictive 80s of the last century. So I leave more. When I've asked Spaniards, they usually say you have to be mean, stingy. Don't pick up the shrapnel, that's all. For many Spaniards it's not even a question: why would you worry about tips? The people who serve you are already paid; why would they need your donation and a couple I asked about tipping last weekend said they thought it was dying out, because of credit card payments as much as anything. So, you get a couple of coffees and the bill comes to €3.40. You leave the 60 céntimos and you're a big tipper. If it were €3.80, then the 20 céntimos is more in the normal range. But pick up the change and nobody will bat an eyelid. They'll serve you the next time you're in. I tend to round up, but I sometimes ...