Smart home devices are popular purchases for home users, but they're also increasingly capable of doing things that their owners might not expect. Eduardo Barros was house-sitting with his girlfriend and her daughter when the two got into an argument that became physical, ABC News reports. Barros allegedly pulled a firearm on his girlfriend and threatened to kill her, asking if she'd called the sheriff. The home speaker heard this as a command and proceeded to call the police. Deputies then arrived on the scene, removing Barros' girlfriend and her daughter from the home. A SWAT team and crisis negotiation team also came to the home and were able bring Barros into custody after an extended stand-off.