I just got back from a fantastic five-night stay in Costa Rica. I would say my only complaint for the whole trip was the final security check at the airport.
At the boarding gate (on my plane back to the U.S.) you have to offer up your bags for hand searches. The security officer cleared my entire baggie of liquid items (which included travel size toothpaste, sunscreen, contact solution, etc...) and took my deodorant as well. Each time he looked at the items and said "no, no, no" (he didn't speak much English and I don't speak much Spanish). I wasn't going to be bothered to complain over a few dollars worth of stuff, but I found this "fleecing" odd. Meanwhile, my girlfriend didn't have any of her liquid items taken away except for the $3 bottle of Pepsi she just bought at the terminal for the flight over - which irked her.
What is the standard in these searches? What experiences have you had? I'm mostly just curious?