Well, I just learned a lesson. Never ever use a credit card to call Vancouver from a payphone in Amsterdam. Ev-ver. I called my parents and left a message (the entire call was under two minutes, I timed it) with my flight info so they could come pick me up at the airport when I got home. Turns out that phone call cost me $39.80.
And to think that I did that cause I didn't want to buy a 5 Euro phone card and only use a tiny bit of it.