A group of Philadelphia real estate investors avoided more than a money pit when one of their properties included a booby-trapped staircase.

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Ekrem Usayler was walking through a Southwest Philadelphia home Jan. 2 with his team when they noticed a small trip-wire covered in glass shards atop a stairway, WCAU reported.

They grabbed a pole, pulled the string and started filming.

An aluminum crutch with a knife duct-taped to it fell to where a person’s head would be, the video shows.

"It's like 'Home Alone,' Delco style, Philly style," Usayler told WCAU. "It could've done a lot of damage, but luckily, we saw it before anybody got hurt."

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A rendering of the columbarium memorial that is estimated to be completed by next summer or fall in the southeast part of Oakland Cemetery, officials said. (Courtesy of Historic Oakland Foundation)

Credit: Historic Oakland Foundation