T-Rex: One day, Graham developed the ability to pass through solid matter! He could now walk through walls!

T-Rex: Gravity yanked him to the center of the Earth, gruesomely killing him!!

T-Rex: So when Graham 2 suddenly developed the ability to pass through solid matter, he made sure that his feet stayed solid. While he couldn't walk through walls, he could poke his head through them and look around!
Dromiceiomimus: What happened to him?
T-Rex: The transformation occurred while he was reheating lunch, and he tripped and fell and his head passed through the microwave. Dead.

Utahraptor: These Grahams aren't having much luck!
T-Rex: It's a tricky power to have!

T-Rex: Graham 3 realized that if he was passing through matter then matter was also passing through him, which explained to his satisfaction why he was suffocating to death. Graham 4 made it so matter could only pass through his hands, but then all the blood in his body shot out of his wrists in tremendous geysers.

T-Rex: When Graham 5 made it so he could pass through matter, everything inside his digestive system - including the microflora - fell onto the floor in a wet heap, which left him disgusted, hungry, AND vulnerable to pathogens.
T-Rex: He um - did pretty okay, actually!