Would you trust Matt Damon in a game of spy?

The 45-year-old “Jason Bourne” actor puts unknowing people to the test in a video for fundraising site Omaze. “We have set up a simulation to give unsuspecting people the chance to feel like they’re in a spy movie,” Damon explains in the video. “All they have to do is trust me.”

While people didn’t get a chance to see the face behind the voice on the phone until the fun was over, many people still remained surprisingly trusting. The selected bunch were handed a cellphone by a total stranger and asked to do a series of awkward tasks. “I need you to go buy a hot dog,” the actor tells one man. He then asks a woman to meet someone and say “elephants can swim.”

Related: Matt Damon’s Return As ‘Jason Bourne’ Teased In New Featurette

For the game players who weren’t quick to drop the phone and run away, they were eventually handed an envelope, which gave them clues to a special location containing Damon. And in return for their trust, they were given tickets to the July premiere of Damon’s new “Bourne” film.

For those of us a little less trusting, however, it’s still possible to win a chance to attend the premiere by donating $10 to the actor’s campaign Omaze. All proceeds raised will go to support Water.org, a charity founded by Gary White and Damon, which pioneers innovative, community-driven solutions to ensure all people have access to safe water and sanitation.