I've kicked in two doors.
One was a house where there was a great deal of smoke evident and there was nobody home. The smoke was from a TV which had burned up due to a lightning strike and there was no other damage to the house besides a massive amount of smoke damage and some water damage from dragging a hose inside. One plastic TV can put out an amazing amount of smoke.
The other was a raging fire and why I kicked the door in I'll never be able to explain, the wall adjacent to the door had already burned away and there was obviously nobody inside to save. One does strange things on adrenalin overload.
I haven 't seen that clip, but like TXI I wonder if there was some obvious reason that they saw.
As for what would I do? It would depend on my situational awareness, if my home was high and dry and I wasn't anticipating rescue, I might assume that someone breaking in meant me harm . . .
Edited to add:
I could probably swap war stories about being a fireman with Steve for a couple of weeks, and every one of them true . . .
![Laughing :lol:](./images/smilies/icon_lol.gif)