In the summertime....

Zack woke up in his quarters, and rubbed his face groggily.
"Eeuurgh, never again.  God, what did I do last night?"
"Well technically it was friday night, Zack.  You've been out of it for about 26 hours."  replied Holly, popping up on Zack's monitor.
"Hey, what're you doing in my room?!?!" yelped Zack.
"Ermmm...  I'm bored.  There's practically nothing going on at the moment.  We're just sitting here while most of the crew are of carousing, imbibing alcohol, and generally having a good time."  Holly muttered gloomily.
"Aaaahhhhh!!!!  Shore leave!!  Aaaahhh!!!"  Zack exclaimed, as he leapt out of bed, and started running around the room, pulling on socks, shoving clothes and a couple of thermos flasks into a hold-all, and generally making a mess.
"I mean, it's not as if anyone even thoinks about me when they leave, it's "ooh, shoreleave, lets get out of here" and they're off.  It's only the new people and workaholics that're still here......."  Holly continued to mumble to herself.  Suddenly, she perked up.
"Oooohhh....  A gravitational anomaly on Deck 15, no, 14, 13, 12........  Wow, it's heading straight for this room."
"It's not working, Holly, I'm not staying.  I've already missed two days of shore leave, and I've got a lot of pent up partying to vent."
Zack grabbed a slice of cold pizza from beside his bed, but when the plate came up with it, he decided to get some breakfast on the way, and strode out of the room, carrying his holdall.
Shortly after Zack had left the room, something ripped through the ceiling, and smashed through the bed where Zack had been sleeping shortly before, all the time muttering "Hmmmm... that shouldn't have happened, let me check my notes........"