K-Nabbed
You're invited to someone's house and then you're tricked into going to a place that's worse than your math test.
You came over for fun, but now you're at the Hick Bar and your math test is laughing at you.
You were promised snacks, but now you're at an Electro Club and your math test is in the crowd.
You showed up to chill, but now you're at a Hick Bar and your math test is in the bar.