Sam and Silo

"When will that light turn green?" asks Sam, staring at the traffic light in front of him. "It's been red a long time!"
The green and yellow lights are both on, the red is off.
"Ah, there it goes" says Sam as the green light begins to glow even brighter. The red remains off and the yellow remains on.
"Aren't you going to cross?" asks Silo.
"Nah," says Sam, "there's nothing over there"

Comic