October 9, 2015 4:47 PM EDT

It’s October, which means Halloween costume pranks are on the rise — though these kinds of stunts can be seen every day on YouTube.

A clip that is just going viral now claims to show a woman spooking her brother by dressing up in a creepy clown costume, hiding in a shower and then jumping out as he walks into the room.

People who are especially gullible should think of the footage as a friendly reminder to be vigilant as the spooky holiday approaches.

(h/t The Telegraph)

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Write to Olivia B. Waxman at olivia.waxman@time.com.

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