This may seem unbelievable like there may be suspicious thoughts of repeat betrayals coming from tech companies to customers like what some of the US ISPs do in betraying their customers with something that goes against the purpose and definition of proper security or perhaps what Microsoft has with the How-Old.net service that makes technical betrayal real. Another unbelievable thing is what Google's planning with the dolls that listen and watch on what the children are doing. In general, we don't know what Google will be up to in patenting this technology.
This kind of technology such as voice controlled toys has been around for a long time and the Contana, Siri and Google Now are already based on the same exact technology which Neowin doesn't find them intrusive so be glad about that when using those voice assistants. However, combining all of these can lead to serious consequences for comprising security like that and we don't know if this is going to happen.
The movie, Five Nights at Freddy's, may have the same concept but in reality, the only addition is the technology itself that allows the fictional magic to happen in a wrong way. I may suggest that you invent the real-life version of something from some other franchise that has its own fictional technology like the hoverboard for instance. That was something someone invented and broke the global record when riding one in the air above the water for long instance. Don't patent and invent the technology that is used for something intrusive, destructive or any other bad purpose.
