I managed to piss off 2 taxi drivers within a matter of about 8 minutes.
Asshole #1:
One day this past week, about 7pm, my girl and I get in a taxi near my apartment, a couple blocks from Hospital Calderon Guardia (near Sportsmens) and want to go to Mas x Menos, right there off Calle 11 and Ave 1. I didn't tell him the street numbers, didn't want his head to explode trying to figure out where Calle 11 and Ave 1 is.

But I assumed they all should know where Mas x Menos is. Apparently not. So my girl tells him it's next to the bus stop to San Pedro. I don't know if this is an accurate description or what.
This idiot decides to take us to San Pedro Mall. As I notice him going in that direction, I asked where we are going, he says San Pedro Mall. I calmly said "NO, we want to go to Mas x Menos", she tells him again that it's in front of the bus stop to San Pedro.
So he proceeds to go back towards the general area of where it is, but he keeps going past where he should have turned, so again we say, you are going in the wrong direction. He stops and tells us that we don't have to pay (1,200¢ on the meter) and we should go find another taxi. I said good idea loud enough to make sure he would hear me. We got out and I slammed the door as hard as I could. Luckily it didn't fall off that piece of shit he was driving. He threw us out in the park in front of the Holiday Inn.
Asshole #2:
My girl wants to walk to M x M since it's only like 3 blocks more, but we'd have to go past Del Rey and that whole area where people keep getting jumped. I'm like "No way, we are taking a taxi". She now thinks I'm a big pu*sy.

Anyway, we get in and tell the taxista where we want to go and he says that it's close and we should walk. I said no, it's OK, take us. So he gets all pissed off and starts to go. As we pull up to M x M, the meter still says 405. I give him 1,000¢ bill and say give me back 500. But he literally shoves 600¢ in my hand, I tried to give him back the 100¢ coin but he wouldn't take it, all pissed off muttering something under his breath that I couldn't make out.
Can anybody explain this to me? I always thought it was their job to take people where they wanted to go as long as they paid the correct fare. Maybe it's different in Costa Rica.

Those of you who take a taxi from DR to the Prez, do you find the same attitudes?