"Portal...gun." He does keep a straight face at least.

"You didn't happen to have a pair of springy shoes with you too?"

"If I see them, I'll try to get your gun back." Taking them out is a little too much to promise. Honestly, getting the gun back is a little too much, he thinks. But he needs to get back home.

"But if you get it, could you take me back to my world?"