[What the hell was that.

Squall is startled out of his peace and quiet by the sound of someone barging into his house and slamming his door and ...

He knew that voice ...

Sighing, he strides over to the entrance of his house and stops to stare at Irvine.]

What do you think you're doing.

[This was Squall's house. His sanctuary. Sole and single occupant. Meaning no visitors unless he asked you first. which means no visitors ever]