A Strange Encounter

<snip>
"Well, I sure hope this isn't another prank assignment." X4 said
with something resembling sarcasm.
"If it is," Alex replied, "the administrator's wife's going to get
something to hang her towels on."
He stood up. "Well, let's go meet the neighbours!"
<end snip>
Who: Alex and X4
Where: Landing Bay Exit
When: A few moments after snip
The landing bay door scraped open, revealing the human and the robot
behind it. The human stepped out and look around, pointing his
bazookoid around the empty corridor. Something was wrong. Not "a man
eating moose dung" wrong, as in "not right" wrong.
"Where is everyone?" X4's metallic voice came from behind him. Alex
was about to answer, when a scream echoed down the corridor. A green
blob whizzed across an intersection ahead, screeching all the way.
Alex aimed and fired, the laser going clean through it.
It turned towards him, fixating its glowing red eyes on him. It let
out an inhuman yell, and began racing towards him. X4 moved along
side Alex, his built in bazookoid pistol extending from under its
cowling. They were ready to die.
Four orange beams streaked across the corridor, almost entwining the
blob in their grasp. It screamed again, this time in fear. It flew
off down another corridor, four men in cream slacks sprinting after
it.
"DON'T CROSS THE BEAMS!" one shrieked. "GET THE TRAP READY!"
They vanished into a wall.
The human and the droid exchanged looks of confusion.
"What the smeg is going on?!"