You probably wont have time to grab your pistol or even make a phonecall
There is a misperception going on. First, some folks are talking about hearing an intruder and having time to respond. Thus, you hunker down as compared to going house clearing while racking your shotgun repeatedly (sly wit).
If the door crashes in and it is deliberately targeting you - throwing mugs won't do squat or will charging like Tarzan.
Lots of folks carry a gun around the house. Silly not and easy to do with today's compact guns.
But to repeat, if you face a crew and you have time to retrieve a gun and you then go looking for them - that is not advised.