This is actually helpful for people who want to start watching Doctor Who. For the record, I started with Eccleston (because that's what I was shown), watched through the New Who, and am now going to start on Classic Who :)
This would totally happen, you are so absorbed in watching Doctor Who, you wouldn't even notice the Tardis in your living room and the doctor sitting right next to you stealing a handful of your popcorn. I am John Watson in this.
At first it was sad then I saw Sammy and it broke my heart. O my god this is the saddest thing ; it's so true, I don't watch doctor who but I love Sherlock and supernatural. Supernatural put me in tears 😭