WATCH: Brothers Convince Drugged-Up Sister Of Zombie Apocalypse

Just in time for National Siblings Day, two loving brothers pranked their poor sister, who was recovering from post-wisdom teeth extraction pain medication, into believing that the zombie apocalypse was upon us. Click above for the good-hearted hilarity.

Brothers Cabot, Hudson and Barrett Phillips decided the best way to show their sister Millicent how much they loved her was to create an elaborate scheme to freak her out and secretly film it.

USAToday reports:

“The typical wisdom teeth videos are funny but we wanted to do something a little different, and thought the zombie aspect might be a fun twist,” brother and instigator Cabot Phillips says. “We just didn’t anticipate how expressive she would be, and how many one-liners she’d produce — even when terrified and in a drug-induced state.”

It all begins with picking up the sister from the dentist and already having a CD ready that the brothers secretly made. The CD starts playing a recording of a radio station, interrupted by the Emergency Broadcast System, announcing a virus outbreak with symptoms of fever, aggression, death, and cannibalism. The brothers escalate the situation by having their mom call them and tell them to rush home. The brothers quickly make it back and start to gather what they’ll need to survive, hilariously forcing the sister to make tough panicked choices like “Which cake do you want: funfetti or chocolate? We can only take one!”

For zombie defense they hand her a grabbing tool and a rake to which she pipes back, “We have guns, why are you putting gardening equipment in car?!?!”

And even though she’s basically hallucinating the entire time, Millicent manages to make the tough call when the brother asks, “We can only take one pet. Which pet, the cat or the dog.” “THE CAT, YOU IDIOT!,” adding that the dog, “…He’s the worst! He’s already dying. Just leave him and get the cat!”

“She’s no pushover and does her fair share of pranking her older brothers so she understood that we couldn’t pass up an opportunity like this,” Phillips told USAToday. “She took it in stride and just wanted to sleep once she realized that she wasn’t going to be eaten by any zombies.”

Luckily for both the dog and Millicent, the zombie apocalypse was a bust and everyone’s still alive and well.

Click below for one more classic post-wisdom teeth experience …