"I'm almost certain this place would be on fire if I wasn't here."

It sounds more like light hearted joking than it does a jab at Lina, but he's absolutely serious about it. While he's talking, he busies himself with pulling out his coin bag and rifling through it's contents, also pulling out a small, rectangular piece of plastic which he holds up to investigate.

"Odd. Nothing seems to be missing, but someone's planted one of these on me, too."

He's half tempted to burn it and leave it here just to be safe, but he'll deal with that later. For now he's planning on looking through the rest of his stuff to make sure that nothing else weird is going on, and sets the card aside on top of the cashier counter.

And then the door opens. Having no chill, Zel is a bit startled by this and prepares to draw his sword, don't mind him.