If you’ve ever wondered who is hanging up all those “NO ICE” signs on the freeway overpasses, you are not alone. On the latest episode of Tom Explores Los Angeles, host Tom Carroll goes out looking for the answer and it’s not who you’d expect. His name is Jack, and he’s 82-years-old.

Carroll was as surprised as anyone. “An 82-year-old white guy wasn’t the person I pictured hanging ‘NO ICE’ signs,” Carroll told L.A. Taco. In the video, Carroll follows Jack as he posts up some signs over various freeway overpasses.

At some point in the video, a police officer shakes a finger up from below the overpass on what appears to be the 101. Jack waves back down, laughs and yells, “Get the hell out of here.”

“Jack estimates he hangs 500 signs a year,” Carroll explained. “He likes the honks and thumbs-ups he gets from cars passing under him as he hangs the signs—for him, it’s about a human connection.”

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