The humble water gun — the cheap, squirt-squirt variety — has become the weapon of choice and symbol of Spain's anti-tourism protests.

Here’s a reminder to always keep your passport on you or in your personal item.

A group of tourists were sitting at an outdoor table in the Spanish city of Barcelona, trying to enjoy their drinks, when a woman raised a cheap plastic water gun and shot an arc of water at them. Her weapon of choice — the cheap,