Dib groans softly, sitting up on the slab he supposedly constantly fell asleep on. He stretches groggily, reminding himself not to do that again quietly. Then he noticed the sound of two Irkens yelling...
He turned around, only to see the holographic enemies Tak and Zim trying and failing to slap each other. Dib would have assumed they were just holograms, however they weren't in disguise, which only proved it couldn't have been made by his father.
He himself didn't remember doing such a thing, he knew Gaz didn't know how, and he knows no one else knew about them but Zim and Tak, who were missing.
"... Anyone there?" Dib asks, visibly confused.