Burnsville custodian invents Watch-Dawg for school safety

The invention helps teachers lock their doors without having to leave the classroom during active shootings.

March 28, 2016 at 1:27AM

It's a scenario no one wants to imagine — an active shooter in the building, stressed children and panicky teachers hurrying to lock doors. A Burnsville custodian has come up with a device that he thinks can help schools caught in such a crisis.

Mark Glende's stretchy black device is an elastic piece with two bands on the end that can be fastened on both the inside and outside door handles. To use it, teachers lock their doors in the morning and hook the elastic piece over the latch so the door pulls open and closed.

In a lockdown, the teacher removes it, the latch goes in the door, and voilà: The door locks.

It's an easy way to lock a door without having to step outside the classroom, giving the teacher enough time to usher students into a corner and turn off the lights, said Glende, 60, who has worked at Sioux Trail Elementary for 18 years.

His device, called Watch-Dawg, is now being used in some suburban school districts.

Glende said he has heard schools say they can't afford his product, which costs $20 per door. That's $1 for every student, he said.

"What you can't afford is another Sandy Hook," he said.

At the Newtown school shootings, substitute teacher Lauren Rousseau didn't have a key to lock her door during Adam Lanza's shooting rampage. She and 14 of the 15 students were killed.

That horror sent Glende to his basement workshop, where he developed the Watch-Dawg a couple of years ago after 20 or 30 prototypes. Since then, some schools in the Lakeville and Rosemount districts have begun using it.

While it's been in use at Sioux Trail Elementary, the Burnsville-Eagan-Savage district said it hasn't been officially approved for use in the district.

Burnsville police Sgt. Matt Smith said the device eliminates the need to use keys in stressful situations.

"I think that's the idea with this product, is take the keys and a lock out of the equation and just be able to pull one simple thing off and shut the door, and that's it," Smith said.

Eastview Elementary School Principal Taber Akin said the Watch-Dawg is on approximately 10 doors in the school.

He called the device a "grass roots piece" homegrown in the Burnsville district. Glende even makes all the devices himself after ordering the parts. He and his wife have two children, but he says that he has a family of 500, made up of students at the school.

"If I could, I would make enough of them to give to every single school I could think of and donate every single one," Glende said.

Beena Raghavendran • 612-673-4569

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Beena Raghavendran, Star Tribune