A University of Tennessee student decided to check off "use my selfie stick on the Brooklyn Bridge" from his #summergoals list. Now the NYPD is looking pretty, pretty embarrassed!

David Karnauch posted this selfie of himself on Instagram on Monday, with hashtags that included: #newyorkcity #nyc #again #gopro and #adventureaddiction. He told WCBS 2, "I didn’t have any clue that NYC is ramping up security. There was nobody there to stop me from climbing onto the bridge.” Are millennials not being taught about 9/11? If anything, NYC is in a constant state of "ramping up security"!

Anyway, this is just a plain ol' facepalm for the NYPD, after last summer's incidents on the bridge. In July 2014, German artists managed to swap out the bridge's American flags with bleached out American flags. The next month, a Russian tourist decided to scale the bridge—just for fun and to get arrested.

In September, the Department of Transportation installed thrill-seeking barriers, but a French tourist still attempted to scale the bridge.

The NYPD's Deputy Commissioner of Intelligence and Counterterrorism John Miller said, "The person most endangered was the individual whose goal seems to be bringing attention to himself. It was however, irresponsible and illegal. Had the officers patrolling the bridge arrived while he was there, he would have been arrested, as others have been."

The Post notes that his LinkedIn page mentions his love of adventure—"I have an adventurous spirit that directly inspires my passion for learning and determination to fulfill the goals I set in life. With valuable skills obtained from a successful student career and various internship opportunities I am excited to face the challenges ahead." Challenges from the Brooklyn DA's office? Or challenges taking photos with his selfie stick while parasailing?

Sailing with my sis #parasailing#destin#gopro#vsco #vscocam#goprophotography

A photo posted by David Karnauch (@davidkarny) on

Karnauch, who is back in Tennessee, explained to NBC New York, "You could just get on a beam and it actually had handrails on the left and right side, and I just walked across the bridge and turned around to take a picture. I don't recommend anybody else do it. It's not a smart thing to do because I know they take security on the bridges seriously."